[440] | 1 | #ifndef _ViewCellsManager_H__
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| 2 | #define _ViewCellsManager_H__
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| 3 |
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| 4 | #include "Ray.h"
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| 5 | #include "VssRay.h"
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| 6 | #include "Containers.h"
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[475] | 7 | #include "ViewCell.h"
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[610] | 8 | #include "ViewCellBsp.h"
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[440] | 9 |
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[860] | 10 | namespace GtpVisibilityPreprocessor {
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| 11 |
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[440] | 12 | class ViewCell;
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| 13 | class Intersectable;
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| 14 | class RenderSimulator;
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[480] | 15 | class Renderer;
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[440] | 16 | class Mesh;
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| 17 | struct Triangle3;
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| 18 | class SimulationStatistics;
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| 19 | class BspTree;
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| 20 | class KdTree;
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| 21 | class VspKdTree;
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| 22 | class VspBspTree;
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| 23 | class KdNode;
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| 24 | class KdLeaf;
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| 25 | class VspKdTree;
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| 26 | class AxisAlignedBox3;
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[448] | 27 | class BspLeaf;
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[475] | 28 | class ViewCellsStatistics;
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[482] | 29 | class Exporter;
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[532] | 30 | class Beam;
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[570] | 31 | class Preprocessor;
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[580] | 32 | class ViewCellsTree;
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| 33 | class MergeCandidate;
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[503] | 34 |
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[475] | 35 | struct BspRay;
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| 36 |
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[677] | 37 |
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| 38 | /** Probably Visible Set */
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[697] | 39 | class PrVs
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| 40 | {
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| 41 | public:
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[704] | 42 | /// root of view cells tree
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| 43 | ViewCell *mViewCell;
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| 44 |
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[677] | 45 | // input parameter is the render budget for the PrVS
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| 46 | float mRenderBudget;
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| 47 |
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| 48 | /// some characteristic values could be here
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| 49 |
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| 50 | };
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| 51 |
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[850] | 52 |
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| 53 | struct IndexedBoundingBox: public std::pair<int, AxisAlignedBox3>
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| 54 | {
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| 55 | typedef std::pair<int, AxisAlignedBox3> IndexedBoundingBoxParent;
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| 56 |
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| 57 | IndexedBoundingBox(int idx, const AxisAlignedBox3 &box): IndexedBoundingBoxParent(idx, box)
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| 58 | {
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| 59 |
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| 60 | }
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| 61 | };
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| 62 |
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| 63 | /** Manages different higher order operations on the view cells.
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[440] | 64 | */
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| 65 | class ViewCellsManager
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| 66 | {
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| 67 | public:
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[728] | 68 | struct PvsStatistics
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| 69 | {
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| 70 | int minPvs;
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| 71 | int maxPvs;
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| 72 | float avgPvs;
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| 73 | int viewcells;
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[467] | 74 | };
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[697] | 75 |
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[728] | 76 | /// view cell container types
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| 77 | enum {BSP, KD, VSP_KD, VSP_BSP};
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[466] | 78 |
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[728] | 79 | /// view cells evaluation type
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| 80 | enum {PER_OBJECT, PER_TRIANGLE};
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| 81 |
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[574] | 82 | /** Constructor taking the initial and construction samples.
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| 83 | @param initialSamples the maximal number of samples used for creating the hierarchy
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| 84 | of view cells
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| 85 | @param constructionSamples the maximal number of samples used for construction
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[440] | 86 | */
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[574] | 87 | ViewCellsManager(const int initialSamples, const int constructionSamples);
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[440] | 88 |
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| 89 | ViewCellsManager();
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| 90 |
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[462] | 91 | virtual ~ViewCellsManager();
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[440] | 92 |
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[527] | 93 | /** Constructs view cells container taking a preprocessor
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[570] | 94 | @returns the output rays (if not null)
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| 95 | */
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| 96 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 97 |
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[440] | 98 | /** Constructs view cell container with a given number of samples.
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| 99 | */
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[574] | 100 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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[487] | 101 | const VssRayContainer &rays) = 0;
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[440] | 102 |
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[441] | 103 | /** Computes sample contributions of the rays to the view cells PVS.
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| 104 |
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| 105 | @param rays bundle of rays used to find intersections with view cells and
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| 106 | adding the contribution
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[563] | 107 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 108 | intersect
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| 109 | @param storeViewCells true if view cells should be stored in the ray
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| 110 | */
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[697] | 111 | float ComputeSampleContributions(const VssRayContainer &rays,
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[574] | 112 | const bool addContributions,
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| 113 | const bool storeViewCells);
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[440] | 114 |
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[697] | 115 | /** Add sample contributions to the viewcells they intersect */
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| 116 | void AddSampleContributions(const VssRayContainer &rays);
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[563] | 117 |
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[441] | 118 |
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[475] | 119 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 120 | @param ray finds intersections with view cells and holds the contribution
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| 121 | @param castRay true if ray should be cast to gain the information, false if ray
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| 122 | is already holding the information and need not be recast.
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[466] | 123 |
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[475] | 124 | @returns number of sample contributions
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| 125 | */
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[591] | 126 | virtual float ComputeSampleContributions(VssRay &ray,
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| 127 | const bool addRays,
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| 128 | const bool storeViewCells);
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[563] | 129 |
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[591] | 130 | virtual void AddSampleContributions(VssRay &ray);
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[563] | 131 |
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[452] | 132 | /** Prints out statistics of the view cells.
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| 133 | */
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[475] | 134 | virtual void PrintStatistics(ostream &s) const;
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[452] | 135 |
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[440] | 136 | /** Post processes view cells givemŽa number of rays.
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| 137 | */
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[475] | 138 | virtual int PostProcess(const ObjectContainer &objects,
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| 139 | const VssRayContainer &rays) = 0;
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[440] | 140 |
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| 141 | /** Show visualization of the view cells.
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| 142 | */
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| 143 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 144 | const VssRayContainer &sampleRays) = 0;
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[440] | 145 |
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| 146 | /** type of the view cell container.
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| 147 | */
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| 148 | virtual int GetType() const = 0;
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| 149 |
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[463] | 150 | /** Load the input viewcells. The input viewcells should be given as a collection
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| 151 | of meshes. Each mesh is assume to form a bounded polyhedron defining the interior of
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| 152 | the viewcell. The method then builds a BSP tree of these view cells.
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| 153 |
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| 154 | @param filename file to load
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| 155 | @return true on success
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| 156 | */
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[577] | 157 | virtual bool LoadViewCellsGeometry(const string filename);
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[440] | 158 |
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[577] | 159 |
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[440] | 160 | /** Constructs view cell from base triangle. The ViewCell is extruded along the normal vector.
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| 161 | @param the base triangle
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| 162 | @param the height of the newly created view cell
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| 163 | */
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| 164 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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| 165 |
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| 166 | /** Merges two view cells.
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| 167 | @note the piercing rays of the front and back will be ordered
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| 168 | @returns new view cell based on the merging.
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| 169 | */
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[582] | 170 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 171 |
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| 172 | /** Merges a container of view cells.
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| 173 | @returns new view cell based on the merging.
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| 174 | */
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| 175 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 176 |
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| 177 | /** Generates view cell of type specified by this manager
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| 178 | */
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[580] | 179 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 180 |
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| 181 | /** Adds a new view cell to the list of predefined view cells.
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| 182 | */
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| 183 | void AddViewCell(ViewCell *viewCell);
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| 184 |
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| 185 | /** Derive view cells from objects.
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| 186 | */
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| 187 | void DeriveViewCells(const ObjectContainer &objects,
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| 188 | ViewCellContainer &viewCells,
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| 189 | const int maxViewCells) const;
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| 190 |
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| 191 | /** Sets maximal number of samples used for the
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| 192 | construction of the view cells.
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| 193 | */
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| 194 | void SetVisualizationSamples(const int visSamples);
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| 195 |
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[574] | 196 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 197 | */
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| 198 | void SetConstructionSamples(const int constructionSamples);
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| 199 |
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[574] | 200 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 201 | */
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| 202 | void SetInitialSamples(const int initialSamples);
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| 203 |
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[440] | 204 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 205 | */
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| 206 | void SetPostProcessSamples(const int postProcessingSamples);
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| 207 |
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| 208 | /** See set.
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| 209 | */
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| 210 | int GetVisualizationSamples() const;
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| 211 |
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| 212 | /** See set.
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| 213 | */
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| 214 | int GetConstructionSamples() const;
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| 215 |
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| 216 | /** See set.
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| 217 | */
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| 218 | int GetPostProcessSamples() const;
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| 219 |
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| 220 | /** Returns true if view cells wer already constructed.
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| 221 | */
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| 222 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 223 |
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[477] | 224 | /** cast line segment to get a list of unique viewcells which are intersected
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| 225 | by this line segment
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| 226 | */
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[466] | 227 |
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[477] | 228 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 229 | const Vector3 &termination,
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| 230 | ViewCellContainer &viewcells
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| 231 | ) = 0;
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| 232 |
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[477] | 233 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 234 |
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[697] | 235 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs);
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[677] | 236 |
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[697] | 237 | /** Get a viewcell containing the specified point
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| 238 | */
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[569] | 239 | virtual ViewCell *GetViewCell(const Vector3 &point) const = 0;
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[492] | 240 |
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[503] | 241 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 242 |
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[719] | 243 | /** Updates pvs of the view cell hierarchy if necessary.
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| 244 | */
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| 245 | void UpdatePvs();
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| 246 |
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[477] | 247 | /** Returns probability that view point lies in one view cell.
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| 248 | */
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| 249 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 250 |
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[477] | 251 | /** Returns render cost of a single view cell given the render cost of an object.
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| 252 | */
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[728] | 253 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 254 |
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[720] | 255 | /** Returns reference to container of loaded / generated view cells.
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[477] | 256 | */
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| 257 | ViewCellContainer &GetViewCells();
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[468] | 258 |
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[485] | 259 | /** Helper function used to split ray sets uniformly
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| 260 | into one that is currently used and the other that
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| 261 | is saved for later processing.
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| 262 | @param sourceRays the input ray set
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| 263 | @param maxSize the maximal number of rays that will be used
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| 264 | @param usedRays returns the used ray set
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| 265 | @param savedRays if not null, returns the saved ray set
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[477] | 266 | */
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| 267 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 268 | const int maxSize,
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| 269 | VssRayContainer &usedRays,
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| 270 | VssRayContainer *savedRays = NULL) const;
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| 271 |
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[480] | 272 | /** Returns accumulated area of all view cells.
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| 273 | */
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| 274 | float GetAccVcArea();
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[470] | 275 |
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[480] | 276 | /** Returns area of one view cell.
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| 277 | */
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| 278 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 279 |
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[551] | 280 | /** Returns volume of view cell.
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[480] | 281 | */
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| 282 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 283 |
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[480] | 284 | /** Sets the current renderer mainly for view cells statistics.
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| 285 | */
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| 286 | void SetRenderer(Renderer *renderer);
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| 287 |
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[487] | 288 | /** Computes a (random) view point in the valid view space.
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| 289 | @returns true if valid view point was found
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| 290 | */
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| 291 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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| 292 |
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[490] | 293 | /** Returns true if this view point is in the valid view space.
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| 294 | */
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| 295 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 296 |
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[487] | 297 | /** Sets a view space boundary.
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| 298 | */
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| 299 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 300 |
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[519] | 301 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 302 |
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[503] | 303 | /** Creates mesh for this view cell.
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| 304 | */
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| 305 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 306 |
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[508] | 307 | /** Writes view cells to disc.
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| 308 | */
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| 309 | virtual bool ExportViewCells(const string filename);
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| 310 |
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[532] | 311 | /** Casts beam to collect view cells.
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| 312 | */
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| 313 | virtual int CastBeam(Beam &beam);
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| 314 |
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[547] | 315 | /** Checks if view cell is considered as valid.
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| 316 | */
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[561] | 317 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 318 | int minPvsSize,
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| 319 | int maxPvsSize) const;
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[547] | 320 |
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[562] | 321 |
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| 322 | /** Sets validity of view cell
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| 323 | */
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| 324 | virtual void SetValidity(ViewCell *vc,
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| 325 | int minPvsSize,
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| 326 | int maxPvsSize) const;
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| 327 |
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[710] | 328 | /** sets validy of all viewcells
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| 329 | */
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[810] | 330 | virtual void SetValidity(int minPvsSize,
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[569] | 331 | int maxPvsSize) const;
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| 332 |
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[609] | 333 |
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| 334 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 335 | according to the pvs and then pickups those in the ranges
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| 336 | */
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| 337 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 338 |
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[609] | 339 | int CountValidViewcells() const;
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| 340 |
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[547] | 341 | /** Returns maximal allowed pvs size.
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| 342 | */
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| 343 | int GetMaxPvsSize() const;
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| 344 |
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[562] | 345 | /** Returns maximal allowed pvs size.
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| 346 | */
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| 347 | int GetMinPvsSize() const;
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| 348 |
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[561] | 349 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 350 | where pvs is still considered valid.
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| 351 | */
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| 352 | float GetMaxPvsRatio() const;
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| 353 |
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[547] | 354 | /** Exports view cell geometry.
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| 355 | */
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[591] | 356 | virtual void ExportViewCellGeometry(Exporter *exporter,
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| 357 | ViewCell *vc,
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[660] | 358 | const Plane3 *clipPlane = NULL) const = 0;
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[547] | 359 |
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[860] | 360 | /** Brings the view cells into their final state, computes meshes and volume.
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| 361 | */
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[551] | 362 | virtual void FinalizeViewCells(const bool createMesh);
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| 363 |
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[579] | 364 | /** Evaluates statistics values on view cells.
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| 365 | */
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[580] | 366 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 367 | float &expectedRenderCost,
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| 368 | float &deviation,
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| 369 | float &variance,
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| 370 | int &totalPvs,
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| 371 | float &avgRenderCost);
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[579] | 372 |
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[580] | 373 |
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| 374 | /** Returns hierarchy of the view cells.
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| 375 | */
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| 376 | ViewCellsTree *GetViewCellsTree();
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| 377 |
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[581] | 378 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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| 379 | vector<MergeCandidate> &candidates) = 0;
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[580] | 380 |
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[610] | 381 | void CollectViewCells(const int n);
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| 382 |
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[660] | 383 | /** Returns true if this (logical) view cell is equal to a spatial node.
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| 384 | */
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[710] | 385 | virtual bool EqualToSpatialNode(ViewCell *viewCell) const;
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[580] | 386 |
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[660] | 387 | /** Sets current view cells set to active, i.e., the sampling is done in this view cell set.
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| 388 | */
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| 389 | void SetViewCellsActive();
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[599] | 390 |
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[660] | 391 | /** Evaluates worth of current view cell hierarchy.
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| 392 | */
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[664] | 393 | void EvalViewCellPartition(Preprocessor *preprocessor);
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[660] | 394 |
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[728] | 395 | /** Sets maximal size of a view cell filter.
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| 396 | */
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| 397 | void SetMaxFilterSize(const int size);
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[697] | 398 |
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[840] | 399 | /** Returns maximal filter size.
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| 400 | */
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| 401 | int GetMaxFilterSize() const;
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[746] | 402 |
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[840] | 403 | /** Deletes interior nodes from the tree which have negative merge cost set (local merge).
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| 404 | */
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| 405 | void DeleteLocalMergeTree(ViewCell *vc) const;
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[713] | 406 |
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[728] | 407 | /** Evaluautes histogram for a given number of view cells.
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| 408 | */
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| 409 | void EvalViewCellHistogram(const string filename, const int nViewCells);
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| 410 |
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[735] | 411 | /** Evaluautes histogram for a given number of view cells.
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| 412 | */
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| 413 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
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| 414 |
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[728] | 415 | /** Evaluates the render cost of a view cell.
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| 416 | */
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| 417 | float EvalRenderCost(Intersectable *obj) const;
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| 418 |
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[859] | 419 | void
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| 420 | ApplyFilter(KdTree *kdTree,
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| 421 | const float viewSpaceFilterSize,
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| 422 | const float spatialFilterSize
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| 423 | );
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| 424 |
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[870] | 425 | /** Returns bounding box of a view cell.
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| 426 | */
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| 427 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
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[859] | 428 |
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[840] | 429 | /** Exports bounding boxes of objects to file.
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| 430 | */
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| 431 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
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| 432 |
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[850] | 433 | /** Load the bounding boxes into the container.
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| 434 | */
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| 435 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
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[840] | 436 |
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[870] | 437 |
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| 438 | /** Loads view cells from file. The view cells manager is created with
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| 439 | respect to the loaded view cells.
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| 440 |
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| 441 | @returns the view cells manager if loading was successful, false otherwise
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| 442 | */
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| 443 | static ViewCellsManager *LoadViewCells(const string filename, ObjectContainer *objects);
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| 444 |
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[469] | 445 | protected:
|
---|
[859] | 446 | void
|
---|
| 447 | ApplyFilter(ViewCell *viewCell,
|
---|
| 448 | KdTree *kdTree,
|
---|
| 449 | const float viewSpaceFilterSize,
|
---|
| 450 | const float spatialFilterSize,
|
---|
| 451 | ObjectPvs &pvs
|
---|
| 452 | );
|
---|
[480] | 453 |
|
---|
[859] | 454 |
|
---|
[697] | 455 | /** Returns the bounding box of filter width.
|
---|
| 456 | */
|
---|
| 457 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 458 |
|
---|
[697] | 459 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
| 460 | @returns number of view cells found
|
---|
| 461 | */
|
---|
[710] | 462 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 463 | ViewCellContainer &viewCells) const;
|
---|
[697] | 464 |
|
---|
| 465 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 466 |
|
---|
[581] | 467 | /**
|
---|
| 468 | if the view cells tree was already constructed or not.
|
---|
| 469 | */
|
---|
| 470 | bool ViewCellsTreeConstructed() const;
|
---|
| 471 |
|
---|
[574] | 472 | int CastPassSamples(const int samplesPerPass,
|
---|
| 473 | const int sampleType,
|
---|
| 474 | VssRayContainer &vssRays) const;
|
---|
[573] | 475 |
|
---|
[482] | 476 | void ParseEnvironment();
|
---|
| 477 |
|
---|
[508] | 478 | /** Creates unique view cell ids.
|
---|
| 479 | */
|
---|
| 480 | void CreateUniqueViewCellIds();
|
---|
[547] | 481 |
|
---|
[551] | 482 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 483 | */
|
---|
| 484 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 485 |
|
---|
[480] | 486 | /** Recollects view cells and resets statistics.
|
---|
| 487 | */
|
---|
| 488 | void ResetViewCells();
|
---|
[482] | 489 |
|
---|
[480] | 490 | /** Collects the view cells in the view cell container.
|
---|
| 491 | */
|
---|
| 492 | virtual void CollectViewCells() = 0;
|
---|
[482] | 493 |
|
---|
[479] | 494 | /** Evaluates view cells statistics and stores it in
|
---|
| 495 | mViewCellsStatistics.
|
---|
| 496 | */
|
---|
| 497 | void EvaluateViewCellsStats();
|
---|
[482] | 498 |
|
---|
| 499 | //-- helper functions for view cell visualization
|
---|
| 500 |
|
---|
| 501 | /** Exports the view cell partition.
|
---|
| 502 | */
|
---|
[508] | 503 | void ExportViewCellsForViz(Exporter *exporter) const;
|
---|
[482] | 504 |
|
---|
| 505 | /** Sets exporter color.
|
---|
| 506 | */
|
---|
| 507 | virtual void ExportColor(Exporter *exporter, ViewCell *vc) const = 0;
|
---|
| 508 |
|
---|
[556] | 509 |
|
---|
[557] | 510 | virtual float GetViewSpaceVolume();
|
---|
| 511 |
|
---|
[503] | 512 | /** Creates meshes from the view cells.
|
---|
| 513 | */
|
---|
[517] | 514 | void CreateViewCellMeshes();
|
---|
[503] | 515 |
|
---|
[610] | 516 | /** Takes different measures to prepares the view cells after loading them from disc.
|
---|
[577] | 517 | */
|
---|
| 518 | virtual void PrepareLoadedViewCells() {};
|
---|
| 519 |
|
---|
[704] | 520 | /** Constructs local view cell merge hierarchy.
|
---|
| 521 | */
|
---|
| 522 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 523 | const ViewCellContainer &viewCells);
|
---|
| 524 |
|
---|
[713] | 525 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
| 526 | current viewcell
|
---|
| 527 | */
|
---|
| 528 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 529 | const ViewCellContainer &viewCells);
|
---|
| 530 |
|
---|
| 531 |
|
---|
[660] | 532 | /** Creates clip plane for visualization.
|
---|
| 533 | */
|
---|
| 534 | void CreateClipPlane();
|
---|
[591] | 535 |
|
---|
[860] | 536 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 537 | */
|
---|
[752] | 538 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) = 0;
|
---|
| 539 |
|
---|
| 540 |
|
---|
| 541 |
|
---|
[840] | 542 | /// if bounding boxes should also be exported
|
---|
| 543 | bool mExportBboxesForPvs;
|
---|
| 544 |
|
---|
| 545 |
|
---|
[660] | 546 | Plane3 mClipPlane;
|
---|
[837] | 547 |
|
---|
[660] | 548 | bool mUseClipPlaneForViz;
|
---|
[591] | 549 |
|
---|
| 550 |
|
---|
[480] | 551 | /// Renders the view cells.
|
---|
| 552 | Renderer *mRenderer;
|
---|
[440] | 553 |
|
---|
| 554 | /// Loaded view cells
|
---|
[469] | 555 | ViewCellContainer mViewCells;
|
---|
[440] | 556 |
|
---|
[580] | 557 | ViewCellsTree *mViewCellsTree;
|
---|
| 558 |
|
---|
[710] | 559 | bool mPruneEmptyViewCells;
|
---|
[706] | 560 |
|
---|
[719] | 561 | bool mViewCellPvsIsUpdated;
|
---|
[440] | 562 | /// maximum number of samples taken for construction of the view cells
|
---|
| 563 | int mConstructionSamples;
|
---|
[574] | 564 | int mSamplesPerPass;
|
---|
| 565 | int mInitialSamples;
|
---|
[440] | 566 | int mPostProcessSamples;
|
---|
| 567 | int mVisualizationSamples;
|
---|
[441] | 568 |
|
---|
[470] | 569 | float mTotalAreaValid;
|
---|
| 570 | float mTotalArea;
|
---|
[475] | 571 |
|
---|
[547] | 572 | int mMaxPvsSize;
|
---|
[562] | 573 | int mMinPvsSize;
|
---|
[547] | 574 | float mMaxPvsRatio;
|
---|
| 575 |
|
---|
[660] | 576 | int mSamplingType;
|
---|
[722] | 577 | int mEvaluationSamplingType;
|
---|
[600] | 578 | int mNumActiveViewCells;
|
---|
[586] | 579 | bool mCompressViewCells;
|
---|
| 580 |
|
---|
[660] | 581 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 582 | /// the scene bounding box
|
---|
[542] | 583 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[508] | 584 | /// holds the view cell meshes
|
---|
[503] | 585 | MeshContainer mMeshContainer;
|
---|
[508] | 586 | /// if view cells should be exported
|
---|
| 587 | bool mExportViewCells;
|
---|
[547] | 588 |
|
---|
[591] | 589 | //bool mMarchTree);
|
---|
[564] | 590 | bool mOnlyValidViewCells;
|
---|
[547] | 591 |
|
---|
[580] | 592 | /// if rays should be used to collect merge candidates
|
---|
| 593 | bool mUseRaysForMerge;
|
---|
[697] | 594 | /// merge the view cells?
|
---|
[592] | 595 | bool mMergeViewCells;
|
---|
[697] | 596 |
|
---|
| 597 | /// the width of the box filter
|
---|
| 598 | float mFilterWidth;
|
---|
| 599 | int mMaxFilterSize;
|
---|
| 600 |
|
---|
[487] | 601 | //-- visualization options
|
---|
| 602 |
|
---|
| 603 | /// color code for view cells
|
---|
| 604 | int mColorCode;
|
---|
| 605 | bool mExportGeometry;
|
---|
| 606 | bool mExportRays;
|
---|
[517] | 607 |
|
---|
| 608 | bool mViewCellsFinished;
|
---|
[664] | 609 |
|
---|
| 610 | bool mEvaluateViewCells;
|
---|
[666] | 611 |
|
---|
[693] | 612 | bool mShowVisualization;
|
---|
| 613 |
|
---|
| 614 | // HACK in order to detect empty view cells
|
---|
| 615 | void CollectEmptyViewCells();
|
---|
[694] | 616 | void TestEmptyViewCells(const ObjectContainer &obj);
|
---|
[693] | 617 |
|
---|
| 618 | ViewCellContainer mEmptyViewCells;
|
---|
[728] | 619 |
|
---|
| 620 | int mRenderCostEvaluationType;
|
---|
[844] | 621 |
|
---|
| 622 | /// if pvs should be exported with view cells
|
---|
| 623 | bool mExportPvs;
|
---|
[440] | 624 | };
|
---|
| 625 |
|
---|
[441] | 626 |
|
---|
| 627 |
|
---|
[440] | 628 | /**
|
---|
| 629 | Manages different higher order operations on the view cells.
|
---|
| 630 | */
|
---|
| 631 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 632 | {
|
---|
| 633 |
|
---|
| 634 | public:
|
---|
[485] | 635 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 636 | used to construct the bsp tree.
|
---|
| 637 | */
|
---|
[574] | 638 | BspViewCellsManager(BspTree *tree);
|
---|
[440] | 639 |
|
---|
[477] | 640 | ~BspViewCellsManager();
|
---|
| 641 |
|
---|
[574] | 642 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 643 | const VssRayContainer &rays);
|
---|
[440] | 644 |
|
---|
| 645 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 646 | const VssRayContainer &rays);
|
---|
[440] | 647 |
|
---|
| 648 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 649 | const VssRayContainer &sampleRays);
|
---|
[440] | 650 |
|
---|
| 651 | int GetType() const;
|
---|
| 652 |
|
---|
| 653 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 654 |
|
---|
| 655 | bool ViewCellsConstructed() const;
|
---|
| 656 |
|
---|
[475] | 657 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 658 |
|
---|
[468] | 659 | int CastLineSegment(const Vector3 &origin,
|
---|
| 660 | const Vector3 &termination,
|
---|
| 661 | ViewCellContainer &viewcells);
|
---|
| 662 |
|
---|
[471] | 663 | float GetProbability(ViewCell *viewCell);
|
---|
[605] | 664 |
|
---|
[466] | 665 |
|
---|
[503] | 666 | /** Get a viewcell containing the specified point */
|
---|
[569] | 667 | ViewCell *GetViewCell(const Vector3 &point) const;
|
---|
[492] | 668 |
|
---|
[503] | 669 | void CreateMesh(ViewCell *vc);
|
---|
| 670 |
|
---|
[591] | 671 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 672 | ViewCell *vc,
|
---|
[660] | 673 | const Plane3 *clipPlane = NULL) const;
|
---|
[580] | 674 |
|
---|
[587] | 675 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 676 | vector<MergeCandidate> &candidates);
|
---|
[547] | 677 |
|
---|
[587] | 678 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 679 |
|
---|
[590] | 680 | bool ExportViewCells(const string filename);
|
---|
| 681 |
|
---|
[752] | 682 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 683 | */
|
---|
[650] | 684 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 685 |
|
---|
[752] | 686 | /** Updates the pvs in the view cells tree.
|
---|
| 687 | */
|
---|
| 688 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[610] | 689 |
|
---|
[859] | 690 |
|
---|
[440] | 691 | protected:
|
---|
| 692 |
|
---|
[610] | 693 |
|
---|
[480] | 694 | void CollectViewCells();
|
---|
| 695 |
|
---|
[482] | 696 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[547] | 697 |
|
---|
[440] | 698 | /// the BSP tree.
|
---|
| 699 | BspTree *mBspTree;
|
---|
[475] | 700 |
|
---|
| 701 | vector<BspRay *> mBspRays;
|
---|
[440] | 702 |
|
---|
| 703 | private:
|
---|
| 704 |
|
---|
| 705 | /** Exports visualization of the BSP splits.
|
---|
| 706 | */
|
---|
[477] | 707 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 708 |
|
---|
| 709 | /** Exports visualization of the BSP PVS.
|
---|
| 710 | */
|
---|
[477] | 711 | void ExportBspPvs(const ObjectContainer &objects);
|
---|
[440] | 712 |
|
---|
[693] | 713 | void TestSubdivision();
|
---|
[440] | 714 | };
|
---|
| 715 |
|
---|
| 716 | /**
|
---|
| 717 | Manages different higher order operations on the KD type view cells.
|
---|
| 718 | */
|
---|
| 719 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 720 | {
|
---|
| 721 |
|
---|
| 722 | public:
|
---|
| 723 |
|
---|
| 724 | KdViewCellsManager(KdTree *tree);
|
---|
| 725 |
|
---|
[574] | 726 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 727 | const VssRayContainer &rays);
|
---|
[440] | 728 |
|
---|
[478] | 729 | int CastLineSegment(const Vector3 &origin,
|
---|
| 730 | const Vector3 &termination,
|
---|
| 731 | ViewCellContainer &viewcells);
|
---|
[440] | 732 |
|
---|
| 733 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 734 | const VssRayContainer &rays);
|
---|
[440] | 735 |
|
---|
| 736 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 737 | const VssRayContainer &sampleRays);
|
---|
[440] | 738 |
|
---|
| 739 | int GetType() const;
|
---|
| 740 |
|
---|
| 741 | bool ViewCellsConstructed() const;
|
---|
| 742 |
|
---|
[580] | 743 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 744 |
|
---|
[452] | 745 | /** Prints out statistics of this approach.
|
---|
| 746 | */
|
---|
[503] | 747 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[569] | 748 | ViewCell *GetViewCell(const Vector3 &point) const { return NULL; }
|
---|
[452] | 749 |
|
---|
[503] | 750 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 751 |
|
---|
[468] | 752 |
|
---|
[503] | 753 | void CreateMesh(ViewCell *vc);
|
---|
| 754 |
|
---|
[591] | 755 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 756 | ViewCell *vc,
|
---|
[660] | 757 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 758 |
|
---|
[591] | 759 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 760 | vector<MergeCandidate> &candidates);
|
---|
[580] | 761 |
|
---|
[752] | 762 |
|
---|
[440] | 763 | protected:
|
---|
| 764 |
|
---|
[752] | 765 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[580] | 766 | /** Collects view cells from a hierarchy.
|
---|
| 767 | */
|
---|
[480] | 768 | void CollectViewCells();
|
---|
[580] | 769 |
|
---|
[480] | 770 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 771 |
|
---|
[482] | 772 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
[440] | 773 |
|
---|
[547] | 774 |
|
---|
[480] | 775 | /// the BSP tree.
|
---|
| 776 | KdTree *mKdTree;
|
---|
[440] | 777 |
|
---|
[480] | 778 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 779 | int mKdPvsDepth;
|
---|
[440] | 780 | };
|
---|
| 781 |
|
---|
| 782 | /**
|
---|
| 783 | Manages different higher order operations on the view cells
|
---|
| 784 | for vsp kd tree view cells.
|
---|
| 785 | */
|
---|
| 786 | class VspKdViewCellsManager: public ViewCellsManager
|
---|
| 787 | {
|
---|
| 788 |
|
---|
| 789 | public:
|
---|
| 790 |
|
---|
[574] | 791 | VspKdViewCellsManager(VspKdTree *vspKdTree);
|
---|
[440] | 792 |
|
---|
[574] | 793 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 794 | const VssRayContainer &rays);
|
---|
[440] | 795 |
|
---|
| 796 |
|
---|
| 797 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 798 | const VssRayContainer &rays);
|
---|
[440] | 799 |
|
---|
| 800 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 801 | const VssRayContainer &sampleRays);
|
---|
[440] | 802 |
|
---|
| 803 | int GetType() const;
|
---|
| 804 |
|
---|
| 805 | bool ViewCellsConstructed() const;
|
---|
| 806 |
|
---|
[475] | 807 | //virtual void PrintStatistics(ostream &s) const;
|
---|
[440] | 808 |
|
---|
[462] | 809 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
| 810 |
|
---|
[466] | 811 |
|
---|
| 812 | int CastLineSegment(const Vector3 &origin,
|
---|
| 813 | const Vector3 &termination,
|
---|
[468] | 814 | ViewCellContainer &viewcells);
|
---|
[466] | 815 |
|
---|
[569] | 816 | ViewCell *GetViewCell(const Vector3 &point) const { return NULL; }
|
---|
[492] | 817 |
|
---|
[471] | 818 | float GetProbability(ViewCell *viewCell);
|
---|
[468] | 819 |
|
---|
[609] | 820 |
|
---|
[503] | 821 | void CreateMesh(ViewCell *vc);
|
---|
| 822 |
|
---|
[591] | 823 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 824 | ViewCell *vc,
|
---|
[660] | 825 | const Plane3 *clipPlane = NULL) const;
|
---|
[547] | 826 |
|
---|
[580] | 827 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
---|
| 828 |
|
---|
[752] | 829 | virtual void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs) {};
|
---|
[440] | 830 | protected:
|
---|
| 831 |
|
---|
[482] | 832 | void ExportLeaves(const ObjectContainer &objects,
|
---|
| 833 | const VssRayContainer &sampleRays);
|
---|
| 834 |
|
---|
[480] | 835 | void CollectViewCells();
|
---|
| 836 |
|
---|
[482] | 837 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
| 838 |
|
---|
| 839 |
|
---|
[547] | 840 |
|
---|
[440] | 841 | /// the BSP tree.
|
---|
| 842 | VspKdTree *mVspKdTree;
|
---|
| 843 | };
|
---|
| 844 |
|
---|
| 845 |
|
---|
[442] | 846 |
|
---|
| 847 | /**
|
---|
| 848 | Manages different higher order operations on the view cells.
|
---|
| 849 | */
|
---|
| 850 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 851 | {
|
---|
| 852 |
|
---|
| 853 | public:
|
---|
| 854 |
|
---|
[574] | 855 | VspBspViewCellsManager(VspBspTree *tree);
|
---|
[475] | 856 | ~VspBspViewCellsManager();
|
---|
[442] | 857 |
|
---|
[574] | 858 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 859 | const VssRayContainer &rays);
|
---|
[442] | 860 |
|
---|
| 861 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 862 | const VssRayContainer &rays);
|
---|
[442] | 863 |
|
---|
| 864 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 865 | const VssRayContainer &sampleRays);
|
---|
[442] | 866 |
|
---|
| 867 | int GetType() const;
|
---|
| 868 |
|
---|
| 869 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 870 |
|
---|
| 871 | bool ViewCellsConstructed() const;
|
---|
| 872 |
|
---|
[468] | 873 |
|
---|
| 874 | int CastLineSegment(const Vector3 &origin,
|
---|
| 875 | const Vector3 &termination,
|
---|
| 876 | ViewCellContainer &viewcells);
|
---|
[452] | 877 |
|
---|
[471] | 878 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 879 |
|
---|
[569] | 880 | ViewCell *GetViewCell(const Vector3 &point) const;
|
---|
[477] | 881 |
|
---|
[487] | 882 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 883 |
|
---|
[490] | 884 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 885 |
|
---|
| 886 | void CreateMesh(ViewCell *vc);
|
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| 887 |
|
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[508] | 888 | bool ExportViewCells(const string filename);
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| 889 |
|
---|
[532] | 890 | int CastBeam(Beam &beam);
|
---|
| 891 |
|
---|
[591] | 892 | void ExportViewCellGeometry(Exporter *exporter,
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| 893 | ViewCell *vc,
|
---|
[660] | 894 | const Plane3 *clipPlane = NULL) const;
|
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[547] | 895 |
|
---|
[551] | 896 | //float GetVolume(ViewCell *viewCell) const;
|
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| 897 |
|
---|
[555] | 898 | void Finalize(ViewCell *viewCell, const bool createMesh);
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[551] | 899 |
|
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[580] | 900 | void CollectMergeCandidates(const VssRayContainer &rays, vector<MergeCandidate> &candidates);
|
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| 901 |
|
---|
[697] | 902 | /** Returns true if this view cell is equivavalent to a spatial node.
|
---|
| 903 | */
|
---|
[609] | 904 | bool EqualToSpatialNode(ViewCell *viewCell) const;
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---|
[607] | 905 |
|
---|
[697] | 906 |
|
---|
[442] | 907 | protected:
|
---|
[475] | 908 |
|
---|
[697] | 909 | int ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const;
|
---|
[651] | 910 |
|
---|
[610] | 911 | /** Returns node of the spatial hierarchy corresponding to the view cell
|
---|
| 912 | if such a node exists.
|
---|
| 913 | */
|
---|
[609] | 914 | BspNode *GetSpatialNode(ViewCell *viewCell) const;
|
---|
[610] | 915 |
|
---|
[503] | 916 | /** Merges the view cells.
|
---|
[442] | 917 | */
|
---|
[508] | 918 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 919 | const ObjectContainer &objects);
|
---|
[503] | 920 |
|
---|
[564] | 921 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 922 |
|
---|
[480] | 923 | void CollectViewCells();
|
---|
| 924 |
|
---|
[482] | 925 | /** Returns maximal depth difference of view cell
|
---|
| 926 | leaves in tree.
|
---|
| 927 | */
|
---|
| 928 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
[485] | 929 |
|
---|
[482] | 930 |
|
---|
[485] | 931 | void ExportColor(Exporter *exporter, ViewCell *vc) const;
|
---|
| 932 |
|
---|
[752] | 933 | /** Prepare view cells for use after loading them from disc.
|
---|
| 934 | */
|
---|
[577] | 935 | void PrepareLoadedViewCells();
|
---|
| 936 |
|
---|
[752] | 937 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 938 | */
|
---|
[650] | 939 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 940 |
|
---|
[752] | 941 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
| 942 |
|
---|
| 943 |
|
---|
| 944 | // HACK
|
---|
[697] | 945 | void TestFilter(const ObjectContainer &objects);
|
---|
| 946 |
|
---|
| 947 |
|
---|
| 948 |
|
---|
[442] | 949 | /// the view space partition BSP tree.
|
---|
| 950 | VspBspTree *mVspBspTree;
|
---|
| 951 |
|
---|
[591] | 952 |
|
---|
[442] | 953 | private:
|
---|
| 954 |
|
---|
| 955 | /** Exports visualization of the BSP splits.
|
---|
| 956 | */
|
---|
[485] | 957 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 958 | const VssRayContainer &rays);
|
---|
[442] | 959 |
|
---|
| 960 | /** Exports visualization of the BSP PVS.
|
---|
| 961 | */
|
---|
[485] | 962 | void ExportBspPvs(const ObjectContainer &objects,
|
---|
| 963 | const VssRayContainer &rays);
|
---|
[442] | 964 |
|
---|
[693] | 965 | void TestSubdivision();
|
---|
[442] | 966 | };
|
---|
| 967 |
|
---|
[575] | 968 |
|
---|
| 969 | class ViewCellsManagerFactory
|
---|
| 970 | {
|
---|
| 971 |
|
---|
| 972 | public:
|
---|
| 973 |
|
---|
| 974 | ViewCellsManager *Create(const string mName);
|
---|
| 975 |
|
---|
| 976 | };
|
---|
| 977 |
|
---|
[860] | 978 | }
|
---|
| 979 |
|
---|
[440] | 980 | #endif
|
---|