[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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| 115 | @param castRay true if ray should be cast to gain the information, false if ray
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| 116 | is already holding the information and need not be recast.
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[466] | 117 |
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[475] | 118 | @returns number of sample contributions
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| 119 | */
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[1159] | 120 | virtual float ComputeSampleContribution(VssRay &ray,
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| 121 | const bool addRays,
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| 122 | const bool storeViewCells);
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[563] | 123 |
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[591] | 124 | virtual void AddSampleContributions(VssRay &ray);
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[563] | 125 |
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[452] | 126 | /** Prints out statistics of the view cells.
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| 127 | */
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[475] | 128 | virtual void PrintStatistics(ostream &s) const;
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[452] | 129 |
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[440] | 130 | /** Post processes view cells givemŽa number of rays.
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| 131 | */
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[475] | 132 | virtual int PostProcess(const ObjectContainer &objects,
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| 133 | const VssRayContainer &rays) = 0;
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[440] | 134 |
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| 135 | /** Show visualization of the view cells.
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| 136 | */
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| 137 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 138 | const VssRayContainer &sampleRays) = 0;
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[440] | 139 |
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| 140 | /** type of the view cell container.
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| 141 | */
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| 142 | virtual int GetType() const = 0;
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| 143 |
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[463] | 144 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 145 | of meshes. Each mesh is assume to form a bounded polyhedron
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| 146 | defining the interior of the viewcell. The view cells manager
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| 147 | is responsible for building a hierarchy over these view cells.
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[463] | 148 |
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| 149 | @param filename file to load
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| 150 | @return true on success
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| 151 | */
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[1545] | 152 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 153 |
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[440] | 154 | /** Merges two view cells.
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| 155 | @note the piercing rays of the front and back will be ordered
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| 156 | @returns new view cell based on the merging.
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| 157 | */
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[582] | 158 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 159 |
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| 160 | /** Merges a container of view cells.
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| 161 | @returns new view cell based on the merging.
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| 162 | */
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| 163 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 164 |
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[1545] | 165 | /** Generates view cell of the type specified by this manager
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[440] | 166 | */
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[580] | 167 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 168 |
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[1545] | 169 | /** Constructs view cell from base triangle.
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| 170 | The view cell is extruded along the normal vector.
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| 171 | @param the base triangle
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| 172 | @param the height of the newly created view cell
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[440] | 173 | */
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[1545] | 174 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 175 |
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| 176 | /** Sets maximal number of samples used for the
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| 177 | construction of the view cells.
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| 178 | */
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| 179 | void SetVisualizationSamples(const int visSamples);
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| 180 |
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[574] | 181 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 182 | */
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| 183 | void SetConstructionSamples(const int constructionSamples);
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| 184 |
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[574] | 185 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 186 | */
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| 187 | void SetInitialSamples(const int initialSamples);
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| 188 |
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[440] | 189 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 190 | */
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| 191 | void SetPostProcessSamples(const int postProcessingSamples);
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| 192 |
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| 193 | /** See set.
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| 194 | */
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| 195 | int GetVisualizationSamples() const;
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| 196 |
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| 197 | /** See set.
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| 198 | */
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| 199 | int GetConstructionSamples() const;
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| 200 |
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| 201 | /** See set.
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| 202 | */
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| 203 | int GetPostProcessSamples() const;
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| 204 |
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[1002] | 205 | /** Returns true if view cells are already constructed.
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[440] | 206 | */
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| 207 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 208 |
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[477] | 209 | /** cast line segment to get a list of unique viewcells which are intersected
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| 210 | by this line segment
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| 211 | */
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[466] | 212 |
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[477] | 213 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 214 | const Vector3 &termination,
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| 215 | ViewCellContainer &viewcells
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| 216 | ) = 0;
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| 217 |
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[1294] | 218 | /** Returns a stats about the global pvs.
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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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[1027] | 297 | virtual bool ExportViewCells(const string filename,
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| 298 | const bool exportPvs,
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| 299 | const ObjectContainer &objects);
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[508] | 300 |
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[532] | 301 | /** Casts beam to collect view cells.
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| 302 | */
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| 303 | virtual int CastBeam(Beam &beam);
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| 304 |
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[547] | 305 | /** Checks if view cell is considered as valid.
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| 306 | */
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[561] | 307 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 308 | int minPvsSize,
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| 309 | int maxPvsSize) const;
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[547] | 310 |
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[562] | 311 |
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| 312 | /** Sets validity of view cell
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| 313 | */
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| 314 | virtual void SetValidity(ViewCell *vc,
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| 315 | int minPvsSize,
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| 316 | int maxPvsSize) const;
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| 317 |
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[710] | 318 | /** sets validy of all viewcells
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| 319 | */
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[810] | 320 | virtual void SetValidity(int minPvsSize,
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[569] | 321 | int maxPvsSize) const;
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| 322 |
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[609] | 323 |
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| 324 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 325 | according to the pvs and then pickups those in the ranges
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| 326 | */
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| 327 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 328 |
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[1545] | 329 | /** Returns number of valid view cells.
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| 330 | */
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[609] | 331 | int CountValidViewcells() const;
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| 332 |
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[547] | 333 | /** Returns maximal allowed pvs size.
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| 334 | */
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| 335 | int GetMaxPvsSize() const;
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| 336 |
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[562] | 337 | /** Returns maximal allowed pvs size.
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| 338 | */
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| 339 | int GetMinPvsSize() const;
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[561] | 340 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 341 | where pvs is still considered valid.
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| 342 | */
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| 343 | float GetMaxPvsRatio() const;
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[547] | 344 | /** Exports view cell geometry.
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| 345 | */
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[1416] | 346 | virtual void ExportViewCellGeometry(
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| 347 | Exporter *exporter,
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| 348 | ViewCell *vc,
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| 349 | const AxisAlignedBox3 *box,
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| 350 | const AxisAlignedPlane *clipPlane = NULL
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| 351 | ) const = 0;
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[547] | 352 |
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[860] | 353 | /** Brings the view cells into their final state, computes meshes and volume.
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| 354 | */
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[551] | 355 | virtual void FinalizeViewCells(const bool createMesh);
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| 356 |
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[579] | 357 | /** Evaluates statistics values on view cells.
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| 358 | */
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[580] | 359 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 360 | float &expectedRenderCost,
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| 361 | float &deviation,
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| 362 | float &variance,
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| 363 | int &totalPvs,
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| 364 | float &avgRenderCost);
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[579] | 365 |
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[580] | 366 |
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| 367 | /** Returns hierarchy of the view cells.
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| 368 | */
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| 369 | ViewCellsTree *GetViewCellsTree();
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| 370 |
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[1545] | 371 | /** Collect candidates for the view cell merge.
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| 372 | */
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[581] | 373 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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[1022] | 374 | vector<MergeCandidate> &candidates);
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[580] | 375 |
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[1294] | 376 | /** Collects n view cells and stores it as the active view cells.
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| 377 | */
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[610] | 378 | void CollectViewCells(const int n);
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| 379 |
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[660] | 380 | /** Sets current view cells set to active, i.e., the sampling is done in this view cell set.
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| 381 | */
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| 382 | void SetViewCellsActive();
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[599] | 383 |
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[1145] | 384 | /** Evaluates render cost statistics of current view cell hierarchy.
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[660] | 385 | */
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[1178] | 386 | virtual void EvalViewCellPartition();
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[660] | 387 |
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[728] | 388 | /** Sets maximal size of a view cell filter.
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| 389 | */
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| 390 | void SetMaxFilterSize(const int size);
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[697] | 391 |
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[840] | 392 | /** Returns maximal filter size.
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| 393 | */
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| 394 | int GetMaxFilterSize() const;
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[746] | 395 |
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[840] | 396 | /** Deletes interior nodes from the tree which have negative merge cost set (local merge).
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| 397 | */
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| 398 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 399 |
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[728] | 400 | /** Evaluautes histogram for a given number of view cells.
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| 401 | */
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| 402 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 403 |
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[735] | 404 | /** Evaluautes histogram for a given number of view cells.
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| 405 | */
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| 406 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
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| 407 |
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[728] | 408 | /** Evaluates the render cost of a view cell.
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| 409 | */
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| 410 | float EvalRenderCost(Intersectable *obj) const;
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[1002] | 411 |
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| 412 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
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| 413 | of the hierarchy.
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| 414 | */
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[1160] | 415 | void UpdateScalarPvsSize(ViewCell *vc, const int pvsSize, const int entriesInPvs) const;
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[728] | 416 |
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[870] | 417 | /** Returns bounding box of a view cell.
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| 418 | */
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| 419 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
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[859] | 420 |
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[840] | 421 | /** Exports bounding boxes of objects to file.
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| 422 | */
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| 423 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
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[931] | 424 |
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[850] | 425 | /** Load the bounding boxes into the container.
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| 426 | */
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| 427 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
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[840] | 428 |
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[1002] | 429 | /** Returns true if pvs should be exported together with the view cells.
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| 430 | */
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| 431 | bool GetExportPvs() const;
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[870] | 432 |
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[1545] | 433 | /////////////////////////////
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| 434 | // static members
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| 435 |
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[870] | 436 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 437 | respect to the loaded view cells.
|
---|
| 438 |
|
---|
[1002] | 439 | @param filename the filename of the view cells
|
---|
| 440 | @param objects the scene objects
|
---|
| 441 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
| 442 | a mesh is created representing the geometry
|
---|
| 443 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
| 444 | boxes: if there is a certain similarity of overlap between bounding boxes, two tested
|
---|
| 445 | candidate objects are considered to be the same objects
|
---|
[870] | 446 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 447 | */
|
---|
[938] | 448 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[931] | 449 | ObjectContainer *objects,
|
---|
[944] | 450 | const bool finalizeViewCells,
|
---|
[931] | 451 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 452 |
|
---|
[904] | 453 |
|
---|
[931] | 454 | ////////////////////////////////////////////////////////7
|
---|
| 455 | // visiblity filter options
|
---|
[1294] | 456 |
|
---|
[931] | 457 | // TODO: write own visibiltiy filter class
|
---|
| 458 | void ApplyFilter(KdTree *kdTree,
|
---|
| 459 | const float viewSpaceFilterSize,
|
---|
| 460 | const float spatialFilterSize);
|
---|
[904] | 461 |
|
---|
[931] | 462 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 463 | const float spatialFilterSize,
|
---|
| 464 | ObjectPvs &pvs);
|
---|
[480] | 465 |
|
---|
[931] | 466 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 467 | KdTree *kdTree,
|
---|
| 468 | const float viewSpaceFilterSize,
|
---|
| 469 | const float spatialFilterSize,
|
---|
| 470 | ObjectPvs &pvs);
|
---|
| 471 |
|
---|
| 472 | float GetFilterWidth();
|
---|
| 473 |
|
---|
| 474 | float GetAbsFilterWidth();
|
---|
| 475 |
|
---|
[697] | 476 | /** Returns the bounding box of filter width.
|
---|
| 477 | */
|
---|
| 478 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 479 |
|
---|
[1294] | 480 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 481 |
|
---|
[1416] | 482 |
|
---|
[1155] | 483 | /** Returns true if the view cell is equivalent to a
|
---|
| 484 | node of the spatial hierarchy. This function can be used for merged
|
---|
| 485 | view cell.
|
---|
| 486 | e.g. to see if the spatial tree can be reduced on this location
|
---|
[1294] | 487 | note: not implemented
|
---|
[1021] | 488 | */
|
---|
| 489 | virtual bool EqualToSpatialNode(ViewCell *viewCell) const;
|
---|
| 490 |
|
---|
[1155] | 491 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 492 | */
|
---|
| 493 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 494 |
|
---|
| 495 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 496 | **/
|
---|
| 497 | bool GetStoreKdPVs() const;
|
---|
| 498 |
|
---|
[1259] | 499 | virtual bool AddSampleToPvs(
|
---|
| 500 | Intersectable *obj,
|
---|
| 501 | const Vector3 &hitPoint,
|
---|
| 502 | ViewCell *vc,
|
---|
| 503 | const float pdf,
|
---|
| 504 | float &contribution) const;
|
---|
| 505 |
|
---|
[931] | 506 | protected:
|
---|
[1145] | 507 |
|
---|
[697] | 508 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
| 509 | @returns number of view cells found
|
---|
| 510 | */
|
---|
[710] | 511 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 512 | ViewCellContainer &viewCells) const;
|
---|
[697] | 513 |
|
---|
[880] | 514 | /** Tests the visibility filter functionality.
|
---|
| 515 | */
|
---|
[697] | 516 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 517 |
|
---|
[931] | 518 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 519 | */
|
---|
| 520 | bool ViewCellsTreeConstructed() const;
|
---|
| 521 |
|
---|
[1294] | 522 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 523 | */
|
---|
[574] | 524 | int CastPassSamples(const int samplesPerPass,
|
---|
| 525 | const int sampleType,
|
---|
| 526 | VssRayContainer &vssRays) const;
|
---|
[573] | 527 |
|
---|
[931] | 528 | /** Parse the options from the environment file.
|
---|
| 529 | */
|
---|
[482] | 530 | void ParseEnvironment();
|
---|
| 531 |
|
---|
[508] | 532 | /** Creates unique view cell ids.
|
---|
| 533 | */
|
---|
| 534 | void CreateUniqueViewCellIds();
|
---|
[547] | 535 |
|
---|
[551] | 536 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 537 | */
|
---|
| 538 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 539 |
|
---|
[480] | 540 | /** Recollects view cells and resets statistics.
|
---|
| 541 | */
|
---|
| 542 | void ResetViewCells();
|
---|
[482] | 543 |
|
---|
[480] | 544 | /** Collects the view cells in the view cell container.
|
---|
| 545 | */
|
---|
| 546 | virtual void CollectViewCells() = 0;
|
---|
[482] | 547 |
|
---|
[479] | 548 | /** Evaluates view cells statistics and stores it in
|
---|
| 549 | mViewCellsStatistics.
|
---|
| 550 | */
|
---|
| 551 | void EvaluateViewCellsStats();
|
---|
[482] | 552 |
|
---|
[1416] | 553 |
|
---|
| 554 | ///////////////////////
|
---|
[482] | 555 | //-- helper functions for view cell visualization
|
---|
| 556 |
|
---|
| 557 | /** Exports the view cell partition.
|
---|
| 558 | */
|
---|
[1416] | 559 | void ExportViewCellsForViz(
|
---|
| 560 | Exporter *exporter,
|
---|
| 561 | const AxisAlignedBox3 *box,
|
---|
| 562 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[482] | 563 |
|
---|
| 564 | /** Sets exporter color.
|
---|
| 565 | */
|
---|
[1021] | 566 | virtual void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[1545] | 567 |
|
---|
[1416] | 568 | /** Creates meshes from the view cells.
|
---|
| 569 | */
|
---|
| 570 | void CreateViewCellMeshes();
|
---|
[1545] | 571 |
|
---|
| 572 | /** Creates clip plane for visualization.
|
---|
[1416] | 573 | */
|
---|
| 574 | void CreateClipPlane();
|
---|
[482] | 575 |
|
---|
[1416] | 576 | AxisAlignedPlane *GetClipPlane();
|
---|
[1545] | 577 |
|
---|
[1551] | 578 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 579 |
|
---|
[1416] | 580 | ///////////////////////
|
---|
| 581 |
|
---|
[1002] | 582 | /** Returns volume of the view space.
|
---|
| 583 | */
|
---|
[557] | 584 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 585 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 586 | */
|
---|
[577] | 587 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 588 | /** Constructs local view cell merge hierarchy.
|
---|
| 589 | */
|
---|
| 590 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 591 | const ViewCellContainer &viewCells);
|
---|
| 592 |
|
---|
[713] | 593 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 594 | current viewcell
|
---|
| 595 | */
|
---|
| 596 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 597 | const ViewCellContainer &viewCells);
|
---|
| 598 |
|
---|
[860] | 599 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 600 | */
|
---|
[1168] | 601 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 602 |
|
---|
[1002] | 603 |
|
---|
[979] | 604 | ////////////////////////////////////////////////
|
---|
[752] | 605 |
|
---|
[1145] | 606 | Preprocessor *mPreprocessor;
|
---|
| 607 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 608 | bool mExportBboxesForPvs;
|
---|
[1416] | 609 | /// the clip plane for visualization
|
---|
| 610 | AxisAlignedPlane mClipPlaneForViz;
|
---|
| 611 | /// if the visualization is using the clip plane
|
---|
[660] | 612 | bool mUseClipPlaneForViz;
|
---|
[480] | 613 | /// Renders the view cells.
|
---|
| 614 | Renderer *mRenderer;
|
---|
[440] | 615 | /// Loaded view cells
|
---|
[469] | 616 | ViewCellContainer mViewCells;
|
---|
[1416] | 617 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 618 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 619 |
|
---|
[1416] | 620 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 621 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 622 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 623 | */
|
---|
[719] | 624 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 625 |
|
---|
[1416] | 626 | /// maximum number of samples for the view cell construction
|
---|
[440] | 627 | int mConstructionSamples;
|
---|
[574] | 628 | int mSamplesPerPass;
|
---|
| 629 | int mInitialSamples;
|
---|
[440] | 630 | int mPostProcessSamples;
|
---|
| 631 | int mVisualizationSamples;
|
---|
[441] | 632 |
|
---|
[470] | 633 | float mTotalAreaValid;
|
---|
| 634 | float mTotalArea;
|
---|
[475] | 635 |
|
---|
[547] | 636 | int mMaxPvsSize;
|
---|
[562] | 637 | int mMinPvsSize;
|
---|
[547] | 638 | float mMaxPvsRatio;
|
---|
| 639 |
|
---|
[660] | 640 | int mSamplingType;
|
---|
[722] | 641 | int mEvaluationSamplingType;
|
---|
[600] | 642 | int mNumActiveViewCells;
|
---|
[586] | 643 | bool mCompressViewCells;
|
---|
| 644 |
|
---|
[1002] | 645 | /// holds the current view cell statistics
|
---|
[660] | 646 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 647 | /// the scene bounding box
|
---|
[542] | 648 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 649 |
|
---|
[508] | 650 | /// if view cells should be exported
|
---|
| 651 | bool mExportViewCells;
|
---|
[547] | 652 |
|
---|
[1002] | 653 | // if only valid view cells should be considered for processing
|
---|
[564] | 654 | bool mOnlyValidViewCells;
|
---|
[547] | 655 |
|
---|
[580] | 656 | /// if rays should be used to collect merge candidates
|
---|
| 657 | bool mUseRaysForMerge;
|
---|
[1021] | 658 |
|
---|
[1002] | 659 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 660 | bool mMergeViewCells;
|
---|
[697] | 661 |
|
---|
| 662 | /// the width of the box filter
|
---|
| 663 | float mFilterWidth;
|
---|
| 664 | int mMaxFilterSize;
|
---|
| 665 |
|
---|
[1545] | 666 | bool mStoreObjectPvs;
|
---|
| 667 |
|
---|
| 668 | //////////////////
|
---|
[487] | 669 | //-- visualization options
|
---|
| 670 |
|
---|
[1002] | 671 | /// color code for view cells visualization
|
---|
[1545] | 672 | bool mShowVisualization;
|
---|
[487] | 673 | int mColorCode;
|
---|
| 674 | bool mExportGeometry;
|
---|
| 675 | bool mExportRays;
|
---|
[517] | 676 | bool mViewCellsFinished;
|
---|
[664] | 677 | bool mEvaluateViewCells;
|
---|
[728] | 678 | int mRenderCostEvaluationType;
|
---|
[844] | 679 |
|
---|
| 680 | /// if pvs should be exported with view cells
|
---|
| 681 | bool mExportPvs;
|
---|
[1155] | 682 |
|
---|
[1545] | 683 | bool mUsePredefinedViewCells;
|
---|
[440] | 684 | };
|
---|
| 685 |
|
---|
[441] | 686 |
|
---|
[1545] | 687 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 688 | */
|
---|
| 689 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 690 | {
|
---|
| 691 |
|
---|
| 692 | public:
|
---|
[485] | 693 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 694 | used to construct the bsp tree.
|
---|
| 695 | */
|
---|
[1264] | 696 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 697 |
|
---|
[477] | 698 | ~BspViewCellsManager();
|
---|
| 699 |
|
---|
[574] | 700 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 701 | const VssRayContainer &rays);
|
---|
[440] | 702 |
|
---|
| 703 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 704 | const VssRayContainer &rays);
|
---|
[440] | 705 |
|
---|
| 706 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 707 | const VssRayContainer &sampleRays);
|
---|
[440] | 708 |
|
---|
| 709 | int GetType() const;
|
---|
| 710 |
|
---|
| 711 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 712 |
|
---|
| 713 | bool ViewCellsConstructed() const;
|
---|
| 714 |
|
---|
[475] | 715 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 716 |
|
---|
[468] | 717 | int CastLineSegment(const Vector3 &origin,
|
---|
| 718 | const Vector3 &termination,
|
---|
| 719 | ViewCellContainer &viewcells);
|
---|
| 720 |
|
---|
[1294] | 721 | /** Returns the probability that the view point lies
|
---|
| 722 | in this view cells.
|
---|
| 723 | */
|
---|
[471] | 724 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 725 |
|
---|
[1294] | 726 | /** Get a viewcell containing the specified point.
|
---|
[879] | 727 | */
|
---|
| 728 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 729 |
|
---|
[1294] | 730 | /** Creates mesh for this view cell.
|
---|
| 731 | */
|
---|
[503] | 732 | void CreateMesh(ViewCell *vc);
|
---|
| 733 |
|
---|
[1416] | 734 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 735 | ViewCell *vc,
|
---|
| 736 | const AxisAlignedBox3 *box,
|
---|
| 737 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 738 | ) const;
|
---|
[580] | 739 |
|
---|
[587] | 740 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 741 | vector<MergeCandidate> &candidates);
|
---|
[547] | 742 |
|
---|
[587] | 743 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 744 |
|
---|
[1416] | 745 | bool ExportViewCells(const string filename,
|
---|
| 746 | const bool exportPvs,
|
---|
| 747 | const ObjectContainer &objects);
|
---|
[590] | 748 |
|
---|
[752] | 749 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 750 | */
|
---|
[650] | 751 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 752 |
|
---|
[1545] | 753 |
|
---|
[440] | 754 | protected:
|
---|
| 755 |
|
---|
[480] | 756 | void CollectViewCells();
|
---|
[547] | 757 |
|
---|
[440] | 758 | /// the BSP tree.
|
---|
| 759 | BspTree *mBspTree;
|
---|
[475] | 760 | vector<BspRay *> mBspRays;
|
---|
[440] | 761 |
|
---|
| 762 | private:
|
---|
| 763 |
|
---|
[1545] | 764 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 765 | */
|
---|
| 766 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 767 |
|
---|
[440] | 768 | /** Exports visualization of the BSP splits.
|
---|
| 769 | */
|
---|
[477] | 770 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 771 |
|
---|
| 772 | /** Exports visualization of the BSP PVS.
|
---|
| 773 | */
|
---|
[477] | 774 | void ExportBspPvs(const ObjectContainer &objects);
|
---|
[440] | 775 |
|
---|
[1002] | 776 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 777 | */
|
---|
[693] | 778 | void TestSubdivision();
|
---|
[440] | 779 | };
|
---|
| 780 |
|
---|
[1545] | 781 |
|
---|
[440] | 782 | /**
|
---|
| 783 | Manages different higher order operations on the KD type view cells.
|
---|
| 784 | */
|
---|
| 785 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 786 | {
|
---|
| 787 |
|
---|
| 788 | public:
|
---|
| 789 |
|
---|
[1264] | 790 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 791 |
|
---|
[574] | 792 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 793 | const VssRayContainer &rays);
|
---|
[440] | 794 |
|
---|
[478] | 795 | int CastLineSegment(const Vector3 &origin,
|
---|
| 796 | const Vector3 &termination,
|
---|
| 797 | ViewCellContainer &viewcells);
|
---|
[440] | 798 |
|
---|
| 799 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 800 | const VssRayContainer &rays);
|
---|
[440] | 801 |
|
---|
| 802 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 803 | const VssRayContainer &sampleRays);
|
---|
[440] | 804 |
|
---|
| 805 | int GetType() const;
|
---|
| 806 |
|
---|
| 807 | bool ViewCellsConstructed() const;
|
---|
| 808 |
|
---|
[580] | 809 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 810 |
|
---|
[452] | 811 | /** Prints out statistics of this approach.
|
---|
| 812 | */
|
---|
[503] | 813 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 814 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 815 | { return NULL; }
|
---|
[452] | 816 |
|
---|
[503] | 817 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 818 |
|
---|
[503] | 819 | void CreateMesh(ViewCell *vc);
|
---|
| 820 |
|
---|
[1416] | 821 | void ExportViewCellGeometry(
|
---|
| 822 | Exporter *exporter,
|
---|
| 823 | ViewCell *vc,
|
---|
| 824 | const AxisAlignedBox3 *box,
|
---|
| 825 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 826 | ) const;
|
---|
[547] | 827 |
|
---|
[1416] | 828 |
|
---|
[591] | 829 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 830 | vector<MergeCandidate> &candidates);
|
---|
[580] | 831 |
|
---|
[752] | 832 |
|
---|
[440] | 833 | protected:
|
---|
| 834 |
|
---|
[580] | 835 | /** Collects view cells from a hierarchy.
|
---|
| 836 | */
|
---|
[480] | 837 | void CollectViewCells();
|
---|
[580] | 838 |
|
---|
[480] | 839 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 840 |
|
---|
| 841 |
|
---|
[480] | 842 | /// the BSP tree.
|
---|
| 843 | KdTree *mKdTree;
|
---|
[440] | 844 |
|
---|
[480] | 845 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 846 | int mKdPvsDepth;
|
---|
[938] | 847 |
|
---|
| 848 |
|
---|
[440] | 849 | };
|
---|
| 850 |
|
---|
| 851 | /**
|
---|
[442] | 852 | Manages different higher order operations on the view cells.
|
---|
| 853 | */
|
---|
| 854 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 855 | {
|
---|
| 856 |
|
---|
| 857 | public:
|
---|
| 858 |
|
---|
[1264] | 859 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 860 | ~VspBspViewCellsManager();
|
---|
[442] | 861 |
|
---|
[574] | 862 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 863 | const VssRayContainer &rays);
|
---|
[442] | 864 |
|
---|
| 865 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 866 | const VssRayContainer &rays);
|
---|
[442] | 867 |
|
---|
| 868 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 869 | const VssRayContainer &sampleRays);
|
---|
[442] | 870 |
|
---|
| 871 | int GetType() const;
|
---|
| 872 |
|
---|
| 873 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 874 |
|
---|
| 875 | bool ViewCellsConstructed() const;
|
---|
| 876 |
|
---|
[468] | 877 |
|
---|
| 878 | int CastLineSegment(const Vector3 &origin,
|
---|
| 879 | const Vector3 &termination,
|
---|
| 880 | ViewCellContainer &viewcells);
|
---|
[452] | 881 |
|
---|
[471] | 882 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 883 |
|
---|
[879] | 884 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 885 |
|
---|
[487] | 886 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 887 |
|
---|
[490] | 888 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 889 |
|
---|
| 890 | void CreateMesh(ViewCell *vc);
|
---|
| 891 |
|
---|
[1416] | 892 | bool ExportViewCells(
|
---|
| 893 | const string filename,
|
---|
| 894 | const bool exportPvs,
|
---|
| 895 | const ObjectContainer &objects);
|
---|
[508] | 896 |
|
---|
[532] | 897 | int CastBeam(Beam &beam);
|
---|
[1416] | 898 |
|
---|
| 899 | void ExportViewCellGeometry(
|
---|
| 900 | Exporter *exporter,
|
---|
| 901 | ViewCell *vc,
|
---|
| 902 | const AxisAlignedBox3 *box,
|
---|
| 903 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 904 | ) const;
|
---|
[532] | 905 |
|
---|
[547] | 906 |
|
---|
[555] | 907 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 908 |
|
---|
[580] | 909 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 910 |
|
---|
[697] | 911 | /** Returns true if this view cell is equivavalent to a spatial node.
|
---|
| 912 | */
|
---|
[609] | 913 | bool EqualToSpatialNode(ViewCell *viewCell) const;
|
---|
[607] | 914 |
|
---|
[697] | 915 |
|
---|
[442] | 916 | protected:
|
---|
[475] | 917 |
|
---|
[697] | 918 | int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;
|
---|
[651] | 919 |
|
---|
[610] | 920 | /** Returns node of the spatial hierarchy corresponding to the view cell
|
---|
| 921 | if such a node exists.
|
---|
| 922 | */
|
---|
[609] | 923 | BspNode *GetSpatialNode(ViewCell *viewCell) const;
|
---|
[610] | 924 |
|
---|
[1021] | 925 | /** Merges view cells according to some criteria
|
---|
[442] | 926 | */
|
---|
[508] | 927 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 928 | const ObjectContainer &objects);
|
---|
[503] | 929 |
|
---|
[564] | 930 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 931 |
|
---|
[480] | 932 | void CollectViewCells();
|
---|
| 933 |
|
---|
[482] | 934 | /** Returns maximal depth difference of view cell
|
---|
| 935 | leaves in tree.
|
---|
| 936 | */
|
---|
| 937 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 938 |
|
---|
[752] | 939 | /** Prepare view cells for use after loading them from disc.
|
---|
| 940 | */
|
---|
[577] | 941 | void PrepareLoadedViewCells();
|
---|
| 942 |
|
---|
[752] | 943 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 944 | */
|
---|
[650] | 945 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 946 |
|
---|
[979] | 947 | /// HACK for testing visibility filter functionality
|
---|
[697] | 948 | void TestFilter(const ObjectContainer &objects);
|
---|
| 949 |
|
---|
[979] | 950 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 951 | from point queries.
|
---|
| 952 | */
|
---|
| 953 | void VisualizeWithFromPointQueries();
|
---|
[697] | 954 |
|
---|
[991] | 955 | /** Evaluate from point queries for the current scene.
|
---|
| 956 | */
|
---|
| 957 | void EvalFromPointQueries();
|
---|
[979] | 958 |
|
---|
[1021] | 959 | /** Exports visualization of the BSP splits.
|
---|
| 960 | */
|
---|
| 961 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 962 | const VssRayContainer &rays);
|
---|
[991] | 963 |
|
---|
[1021] | 964 | /** Exports visualization of the BSP PVS.
|
---|
| 965 | */
|
---|
| 966 | void ExportBspPvs(const ObjectContainer &objects,
|
---|
| 967 | const VssRayContainer &rays);
|
---|
| 968 |
|
---|
| 969 |
|
---|
[442] | 970 | /// the view space partition BSP tree.
|
---|
| 971 | VspBspTree *mVspBspTree;
|
---|
| 972 |
|
---|
[591] | 973 |
|
---|
[442] | 974 | private:
|
---|
| 975 |
|
---|
[1021] | 976 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 977 | */
|
---|
[1021] | 978 | void TestSubdivision();
|
---|
| 979 | };
|
---|
[442] | 980 |
|
---|
[1421] | 981 | #define TEST_EVALUATION 0
|
---|
[1021] | 982 |
|
---|
| 983 | /**
|
---|
| 984 | Manages different higher order operations on the view cells.
|
---|
| 985 | */
|
---|
| 986 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 987 | {
|
---|
| 988 |
|
---|
| 989 | public:
|
---|
| 990 |
|
---|
[1278] | 991 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 992 |
|
---|
[1021] | 993 | ~VspOspViewCellsManager();
|
---|
| 994 |
|
---|
| 995 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 996 | const VssRayContainer &rays);
|
---|
| 997 |
|
---|
| 998 | int PostProcess(const ObjectContainer &objects,
|
---|
| 999 | const VssRayContainer &rays);
|
---|
| 1000 |
|
---|
| 1001 | void Visualize(const ObjectContainer &objects,
|
---|
| 1002 | const VssRayContainer &sampleRays);
|
---|
| 1003 |
|
---|
| 1004 | int GetType() const;
|
---|
| 1005 |
|
---|
| 1006 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1007 |
|
---|
| 1008 | bool ViewCellsConstructed() const;
|
---|
| 1009 |
|
---|
| 1010 |
|
---|
| 1011 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1012 | const Vector3 &termination,
|
---|
| 1013 | ViewCellContainer &viewcells);
|
---|
| 1014 |
|
---|
| 1015 | float GetProbability(ViewCell *viewCell);
|
---|
| 1016 |
|
---|
| 1017 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1018 |
|
---|
| 1019 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1020 |
|
---|
| 1021 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1022 |
|
---|
| 1023 | void CreateMesh(ViewCell *vc);
|
---|
| 1024 |
|
---|
[1027] | 1025 | bool ExportViewCells(const string filename,
|
---|
| 1026 | const bool exportPvs,
|
---|
| 1027 | const ObjectContainer &objects);
|
---|
[1021] | 1028 |
|
---|
| 1029 | int CastBeam(Beam &beam);
|
---|
| 1030 |
|
---|
| 1031 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1032 |
|
---|
[1159] | 1033 | /** Stores sample contribution for kd cells or objects.
|
---|
| 1034 | */
|
---|
| 1035 | virtual float ComputeSampleContribution(VssRay &ray,
|
---|
| 1036 | const bool addRays,
|
---|
| 1037 | const bool storeViewCells);
|
---|
[1021] | 1038 |
|
---|
[1201] | 1039 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 1040 | ObjectContainer *objects,
|
---|
| 1041 | const bool finalizeViewCells,
|
---|
| 1042 | BoundingBoxConverter *bconverter);
|
---|
| 1043 |
|
---|
[1259] | 1044 | bool AddSampleToPvs(
|
---|
| 1045 | Intersectable *obj,
|
---|
| 1046 | const Vector3 &hitPoint,
|
---|
| 1047 | ViewCell *vc,
|
---|
| 1048 | const float pdf,
|
---|
| 1049 | float &contribution) const;
|
---|
[1201] | 1050 |
|
---|
[1021] | 1051 | protected:
|
---|
[1180] | 1052 |
|
---|
[1184] | 1053 | #if TEST_EVALUATION
|
---|
[1178] | 1054 | virtual void EvalViewCellPartition();
|
---|
[1179] | 1055 | #endif
|
---|
[1416] | 1056 |
|
---|
[1027] | 1057 | /** Exports view cell geometry.
|
---|
| 1058 | */
|
---|
[1416] | 1059 | void ExportViewCellGeometry(
|
---|
| 1060 | Exporter *exporter,
|
---|
[1074] | 1061 | ViewCell *vc,
|
---|
[1416] | 1062 | const AxisAlignedBox3 *box,
|
---|
| 1063 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 1064 | ) const;
|
---|
[1027] | 1065 |
|
---|
[1416] | 1066 | int ComputeBoxIntersections(
|
---|
| 1067 | const AxisAlignedBox3 &box,
|
---|
[1074] | 1068 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1069 |
|
---|
| 1070 | void CollectViewCells();
|
---|
| 1071 |
|
---|
| 1072 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1073 | */
|
---|
| 1074 | void PrepareLoadedViewCells();
|
---|
| 1075 |
|
---|
| 1076 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1077 | */
|
---|
| 1078 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
| 1079 |
|
---|
[1074] | 1080 | /** Exports visualization of the PVS.
|
---|
[442] | 1081 | */
|
---|
[1184] | 1082 | void ExportPvs(
|
---|
| 1083 | const ObjectContainer &objects,
|
---|
[1074] | 1084 | const VssRayContainer &rays);
|
---|
[442] | 1085 |
|
---|
[1021] | 1086 |
|
---|
[1168] | 1087 | /////////////////////////////////////////
|
---|
[1259] | 1088 |
|
---|
[1027] | 1089 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1090 | };
|
---|
| 1091 |
|
---|
[575] | 1092 |
|
---|
[860] | 1093 | }
|
---|
| 1094 |
|
---|
[440] | 1095 | #endif
|
---|