[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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[1786] | 40 | class ViewCell;
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[1903] | 41 | class MixtureDistribution;
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[1047] | 42 | struct AxisAlignedPlane;
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[475] | 43 | struct BspRay;
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| 44 |
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[1903] | 45 |
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[2015] | 46 |
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| 47 |
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[1761] | 48 | struct PvsFilterStatistics {
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[1773] | 49 | PvsFilterStatistics():
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| 50 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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[1761] | 51 | float mAvgFilterRadius;
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| 52 | int mLocalFilterCount;
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| 53 | int mGlobalFilterCount;
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| 54 |
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| 55 | };
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| 56 |
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[1145] | 57 | /** Probably Visible Set
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| 58 | */
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[697] | 59 | class PrVs
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| 60 | {
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| 61 | public:
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[704] | 62 | /// root of view cells tree
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| 63 | ViewCell *mViewCell;
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| 64 |
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[880] | 65 | // input parameter is the render budget for the PrVs
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[677] | 66 | float mRenderBudget;
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| 67 |
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[1557] | 68 | // some characteristic values could be stored as well
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[677] | 69 | };
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| 70 |
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[1786] | 71 |
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| 72 | class LocalMergeNode
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| 73 | {
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| 74 | public:
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| 75 | virtual ~LocalMergeNode() {};
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| 76 | virtual bool IsLeaf() const = 0;
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| 77 | };
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| 78 |
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[2017] | 79 | typedef pair<ViewCell *, SimpleRayContainer> ViewCellPoints;
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[1786] | 80 |
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[850] | 81 | /** Manages different higher order operations on the view cells.
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[440] | 82 | */
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| 83 | class ViewCellsManager
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| 84 | {
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| 85 | public:
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[1983] | 86 |
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[1942] | 87 | struct PerViewCellStat {
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| 88 | float pvsSize;
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| 89 | float relPvsIncrease;
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| 90 | };
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[1983] | 91 |
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| 92 | struct SamplesStatistics {
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| 93 | int mRays;
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| 94 | int mViewCells;
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| 95 | int mContributingRays;
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| 96 | int mPvsContributions;
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| 97 | void Reset() {
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| 98 | mRays = 0;
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| 99 | mViewCells = 0;
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| 100 | mContributingRays = 0;
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| 101 | mPvsContributions = 0;
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| 102 | };
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| 103 | };
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| 104 |
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[1942] | 105 | struct PvsStatistics
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[728] | 106 | {
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[1737] | 107 | float minPvs;
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| 108 | float maxPvs;
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| 109 | float avgPvs;
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[1974] | 110 | float avgPvsEntries;
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| 111 |
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[1737] | 112 | float avgFilteredPvs;
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[1974] | 113 | float avgFilteredPvsEntries;
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| 114 |
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[1737] | 115 | float avgFilterContribution;
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[1761] | 116 | float avgFilterRadius;
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| 117 | float avgFilterRatio;
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[1942] | 118 | float avgRelPvsIncrease;
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| 119 | float devRelPvsIncrease;
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[1737] | 120 | int viewcells;
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[1545] | 121 | };
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[1942] | 122 |
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[728] | 123 | /// view cell container types
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[1021] | 124 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 125 |
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[931] | 126 | /// render cost evaluation type
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[728] | 127 | enum {PER_OBJECT, PER_TRIANGLE};
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| 128 |
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[1545] | 129 | friend class X3dViewCellsParseHandlers;
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[1709] | 130 |
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[1004] | 131 | /** Default constructor.
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[440] | 132 | */
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[1264] | 133 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[440] | 134 |
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[462] | 135 | virtual ~ViewCellsManager();
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[440] | 136 |
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[527] | 137 | /** Constructs view cells container taking a preprocessor
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[570] | 138 | @returns the output rays (if not null)
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| 139 | */
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| 140 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 141 |
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[440] | 142 | /** Constructs view cell container with a given number of samples.
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| 143 | */
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[1709] | 144 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 145 | const VssRayContainer &rays) = 0;
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[440] | 146 |
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[441] | 147 | /** Computes sample contributions of the rays to the view cells PVS.
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| 148 |
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| 149 | @param rays bundle of rays used to find intersections with view cells and
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| 150 | adding the contribution
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[563] | 151 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 152 | intersect
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| 153 | @param storeViewCells true if view cells should be stored in the ray
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| 154 | */
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[697] | 155 | float ComputeSampleContributions(const VssRayContainer &rays,
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[1155] | 156 | const bool addContributions,
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[1990] | 157 | const bool storeViewCells,
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| 158 | const bool useHitObject = false);
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[440] | 159 |
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[475] | 160 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 161 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 162 | @param addSample if sample should be added to the pvs
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| 163 |
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[475] | 164 | @returns number of sample contributions
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| 165 | */
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[1159] | 166 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 167 | const bool addContributions,
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[1990] | 168 | const bool storeViewCells,
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| 169 | const bool useHitObject = false);
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[563] | 170 |
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[1977] | 171 | /** Compute sample contribution only for current view cell.
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| 172 | */
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| 173 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 174 | const bool addContributions,
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[1990] | 175 | ViewCell *currentViewCell,
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| 176 | const bool useHitObject = false);
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[563] | 177 |
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[452] | 178 | /** Prints out statistics of the view cells.
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| 179 | */
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[475] | 180 | virtual void PrintStatistics(ostream &s) const;
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[452] | 181 |
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[440] | 182 | /** Post processes view cells givemŽa number of rays.
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| 183 | */
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[475] | 184 | virtual int PostProcess(const ObjectContainer &objects,
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| 185 | const VssRayContainer &rays) = 0;
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[440] | 186 |
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| 187 | /** Show visualization of the view cells.
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| 188 | */
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| 189 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 190 | const VssRayContainer &sampleRays) = 0;
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[440] | 191 |
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[1982] | 192 | /** collect objects intersecting a given spatial box.
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| 193 | */
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| 194 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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[1737] | 195 |
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[440] | 196 | /** type of the view cell container.
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| 197 | */
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| 198 | virtual int GetType() const = 0;
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| 199 |
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[463] | 200 | /** Load the input viewcells. The input viewcells should be given as a collection
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[1545] | 201 | of meshes. Each mesh is assume to form a bounded polyhedron
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| 202 | defining the interior of the viewcell. The view cells manager
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| 203 | is responsible for building a hierarchy over these view cells.
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[463] | 204 |
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| 205 | @param filename file to load
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| 206 | @return true on success
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[1982] | 207 | */
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| 208 | virtual bool LoadViewCellsGeometry(const string filename, const bool extrudeBaseTriangle);
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[577] | 209 |
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[440] | 210 | /** Merges two view cells.
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| 211 | @note the piercing rays of the front and back will be ordered
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| 212 | @returns new view cell based on the merging.
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| 213 | */
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[582] | 214 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 215 |
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| 216 | /** Merges a container of view cells.
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| 217 | @returns new view cell based on the merging.
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| 218 | */
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| 219 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[440] | 220 |
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[1545] | 221 | /** Generates view cell of the type specified by this manager
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[440] | 222 | */
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[580] | 223 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[440] | 224 |
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[1545] | 225 | /** Constructs view cell from base triangle.
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| 226 | The view cell is extruded along the normal vector.
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| 227 | @param the base triangle
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| 228 | @param the height of the newly created view cell
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[440] | 229 | */
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[1545] | 230 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[440] | 231 |
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[1982] | 232 | virtual Intersectable *GetIntersectable(const VssRay &ray, const bool isTermination) const;
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[1743] | 233 |
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[440] | 234 | /** Sets maximal number of samples used for the
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| 235 | construction of the view cells.
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| 236 | */
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| 237 | void SetVisualizationSamples(const int visSamples);
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| 238 |
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[574] | 239 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 240 | */
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| 241 | void SetConstructionSamples(const int constructionSamples);
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| 242 |
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[574] | 243 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 244 | */
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| 245 | void SetInitialSamples(const int initialSamples);
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| 246 |
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[440] | 247 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 248 | */
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| 249 | void SetPostProcessSamples(const int postProcessingSamples);
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| 250 |
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| 251 | /** See set.
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| 252 | */
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| 253 | int GetVisualizationSamples() const;
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| 254 |
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| 255 | /** See set.
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| 256 | */
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| 257 | int GetConstructionSamples() const;
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| 258 |
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| 259 | /** See set.
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| 260 | */
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| 261 | int GetPostProcessSamples() const;
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| 262 |
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[1002] | 263 | /** Returns true if view cells are already constructed.
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[440] | 264 | */
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| 265 | virtual bool ViewCellsConstructed() const = 0;
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[441] | 266 |
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[477] | 267 | /** cast line segment to get a list of unique viewcells which are intersected
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| 268 | by this line segment
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| 269 | */
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[1977] | 270 | virtual int CastLineSegment(const Vector3 &origin,
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[466] | 271 | const Vector3 &termination,
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| 272 | ViewCellContainer &viewcells
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| 273 | ) = 0;
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| 274 |
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[1977] | 275 | /** Tests if this line segment intersects a particular view cell.
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| 276 | */
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| 277 | virtual bool LineSegmentIntersects(const Vector3 &origin,
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| 278 | const Vector3 &termination,
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| 279 | ViewCell *viewCell) = 0;
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| 280 |
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[1294] | 281 | /** Returns a stats about the global pvs.
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| 282 | */
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[477] | 283 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[466] | 284 |
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[904] | 285 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[677] | 286 |
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[697] | 287 | /** Get a viewcell containing the specified point
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[879] | 288 | @param active if the active or elementary view cell should be returned.
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[697] | 289 | */
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[879] | 290 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[492] | 291 |
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[1982] | 292 | ViewCell *GetViewCell(const int idx) const {return mViewCells[idx];}
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| 293 |
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[503] | 294 | virtual void PrintPvsStatistics(ostream &s);
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[467] | 295 |
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[719] | 296 | /** Updates pvs of the view cell hierarchy if necessary.
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| 297 | */
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| 298 | void UpdatePvs();
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| 299 |
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[477] | 300 | /** Returns probability that view point lies in one view cell.
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| 301 | */
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| 302 | virtual float GetProbability(ViewCell *viewCell) = 0;
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[468] | 303 |
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[477] | 304 | /** Returns render cost of a single view cell given the render cost of an object.
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| 305 | */
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[728] | 306 | float GetRendercost(ViewCell *viewCell) const;
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[468] | 307 |
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[720] | 308 | /** Returns reference to container of loaded / generated view cells.
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[477] | 309 | */
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| 310 | ViewCellContainer &GetViewCells();
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[468] | 311 |
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[485] | 312 | /** Helper function used to split ray sets uniformly
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| 313 | into one that is currently used and the other that
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| 314 | is saved for later processing.
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| 315 | @param sourceRays the input ray set
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| 316 | @param maxSize the maximal number of rays that will be used
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| 317 | @param usedRays returns the used ray set
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| 318 | @param savedRays if not null, returns the saved ray set
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[477] | 319 | */
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| 320 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 321 | const int maxSize,
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| 322 | VssRayContainer &usedRays,
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| 323 | VssRayContainer *savedRays = NULL) const;
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| 324 |
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[480] | 325 | /** Returns accumulated area of all view cells.
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| 326 | */
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| 327 | float GetAccVcArea();
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[470] | 328 |
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[480] | 329 | /** Returns area of one view cell.
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| 330 | */
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| 331 | virtual float GetArea(ViewCell *viewCell) const;
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[470] | 332 |
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[551] | 333 | /** Returns volume of view cell.
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[480] | 334 | */
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| 335 | virtual float GetVolume(ViewCell *viewCell) const;
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[470] | 336 |
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[480] | 337 | /** Sets the current renderer mainly for view cells statistics.
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| 338 | */
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| 339 | void SetRenderer(Renderer *renderer);
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| 340 |
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[487] | 341 | /** Computes a (random) view point in the valid view space.
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| 342 | @returns true if valid view point was found
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| 343 | */
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| 344 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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[1867] | 345 |
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[1982] | 346 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[487] | 347 |
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[490] | 348 | /** Returns true if this view point is in the valid view space.
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| 349 | */
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| 350 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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| 351 |
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[487] | 352 | /** Sets a view space boundary.
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| 353 | */
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| 354 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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| 355 |
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[519] | 356 | AxisAlignedBox3 GetViewSpaceBox() const;
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| 357 |
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[503] | 358 | /** Creates mesh for this view cell.
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| 359 | */
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| 360 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[487] | 361 |
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[508] | 362 | /** Writes view cells to disc.
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| 363 | */
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[1027] | 364 | virtual bool ExportViewCells(const string filename,
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| 365 | const bool exportPvs,
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| 366 | const ObjectContainer &objects);
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[508] | 367 |
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[532] | 368 | /** Casts beam to collect view cells.
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| 369 | */
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| 370 | virtual int CastBeam(Beam &beam);
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| 371 |
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[547] | 372 | /** Checks if view cell is considered as valid.
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| 373 | */
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[561] | 374 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 375 | int minPvsSize,
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| 376 | int maxPvsSize) const;
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[547] | 377 |
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[2015] | 378 |
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| 379 | // resort pvss after a pass of the algorithm
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| 380 | void
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| 381 | SortViewCellPvs();
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| 382 |
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[2021] | 383 | // map the ray intersection objects from triangles to high level objects...
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| 384 | void
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| 385 | DeterminePvsObjects(
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| 386 | VssRayContainer &rays,
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| 387 | const bool useHitObjects = false);
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| 388 |
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[562] | 389 | /** Sets validity of view cell
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| 390 | */
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| 391 | virtual void SetValidity(ViewCell *vc,
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| 392 | int minPvsSize,
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| 393 | int maxPvsSize) const;
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| 394 |
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[710] | 395 | /** sets validy of all viewcells
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| 396 | */
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[810] | 397 | virtual void SetValidity(int minPvsSize,
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[569] | 398 | int maxPvsSize) const;
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| 399 |
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[609] | 400 |
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| 401 | /** set valid viewcells in the range of pvs. sorts the viewcells
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[710] | 402 | according to the pvs and then pickups those in the ranges
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| 403 | */
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| 404 | void SetValidityPercentage(const float minValid, const float maxValid);
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[569] | 405 |
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[1545] | 406 | /** Returns number of valid view cells.
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| 407 | */
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[609] | 408 | int CountValidViewcells() const;
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| 409 |
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[547] | 410 | /** Returns maximal allowed pvs size.
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| 411 | */
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| 412 | int GetMaxPvsSize() const;
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| 413 |
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[562] | 414 | /** Returns maximal allowed pvs size.
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| 415 | */
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| 416 | int GetMinPvsSize() const;
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[561] | 417 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 418 | where pvs is still considered valid.
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| 419 | */
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| 420 | float GetMaxPvsRatio() const;
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[547] | 421 | /** Exports view cell geometry.
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| 422 | */
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[1416] | 423 | virtual void ExportViewCellGeometry(
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| 424 | Exporter *exporter,
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| 425 | ViewCell *vc,
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| 426 | const AxisAlignedBox3 *box,
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| 427 | const AxisAlignedPlane *clipPlane = NULL
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| 428 | ) const = 0;
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[547] | 429 |
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[860] | 430 | /** Brings the view cells into their final state, computes meshes and volume.
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| 431 | */
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[551] | 432 | virtual void FinalizeViewCells(const bool createMesh);
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| 433 |
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[579] | 434 | /** Evaluates statistics values on view cells.
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| 435 | */
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[580] | 436 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 437 | float &expectedRenderCost,
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| 438 | float &deviation,
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| 439 | float &variance,
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[1709] | 440 | float &totalPvs,
|
---|
[580] | 441 | float &avgRenderCost);
|
---|
[579] | 442 |
|
---|
[580] | 443 |
|
---|
| 444 | /** Returns hierarchy of the view cells.
|
---|
| 445 | */
|
---|
| 446 | ViewCellsTree *GetViewCellsTree();
|
---|
| 447 |
|
---|
[1545] | 448 | /** Collect candidates for the view cell merge.
|
---|
| 449 | */
|
---|
[581] | 450 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
[1022] | 451 | vector<MergeCandidate> &candidates);
|
---|
[580] | 452 |
|
---|
[1294] | 453 | /** Collects n view cells and stores it as the active view cells.
|
---|
| 454 | */
|
---|
[610] | 455 | void CollectViewCells(const int n);
|
---|
| 456 |
|
---|
[1686] | 457 | /** Sets current view cells set to active,
|
---|
| 458 | i.e., the sampling is done in this view cell set.
|
---|
[660] | 459 | */
|
---|
| 460 | void SetViewCellsActive();
|
---|
[599] | 461 |
|
---|
[1145] | 462 | /** Evaluates render cost statistics of current view cell hierarchy.
|
---|
[660] | 463 | */
|
---|
[1178] | 464 | virtual void EvalViewCellPartition();
|
---|
[660] | 465 |
|
---|
[728] | 466 | /** Sets maximal size of a view cell filter.
|
---|
| 467 | */
|
---|
| 468 | void SetMaxFilterSize(const int size);
|
---|
[697] | 469 |
|
---|
[840] | 470 | /** Returns maximal filter size.
|
---|
| 471 | */
|
---|
| 472 | int GetMaxFilterSize() const;
|
---|
[746] | 473 |
|
---|
[1686] | 474 | /** Deletes interior nodes from the tree which have negative
|
---|
| 475 | merge cost set (local merge).
|
---|
[840] | 476 | */
|
---|
| 477 | void DeleteLocalMergeTree(ViewCell *vc) const;
|
---|
[713] | 478 |
|
---|
[728] | 479 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 480 | */
|
---|
| 481 | void EvalViewCellHistogram(const string filename, const int nViewCells);
|
---|
| 482 |
|
---|
[735] | 483 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 484 | */
|
---|
| 485 | void EvalViewCellHistogramForPvsSize(const string filename, const int nViewCells);
|
---|
| 486 |
|
---|
[1919] | 487 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 488 | ViewCellContainer &viewCells);
|
---|
| 489 |
|
---|
[728] | 490 | /** Evaluates the render cost of a view cell.
|
---|
| 491 | */
|
---|
[1703] | 492 | static float EvalRenderCost(Intersectable *obj);
|
---|
[1002] | 493 |
|
---|
| 494 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 495 | of the hierarchy.
|
---|
| 496 | */
|
---|
[1709] | 497 | void UpdateScalarPvsSize(ViewCell *vc, const float pvsCost, const int entriesInPvs) const;
|
---|
[728] | 498 |
|
---|
[870] | 499 | /** Returns bounding box of a view cell.
|
---|
| 500 | */
|
---|
| 501 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[859] | 502 |
|
---|
[840] | 503 | /** Exports bounding boxes of objects to file.
|
---|
| 504 | */
|
---|
| 505 | bool ExportBoundingBoxes(const string filename, const ObjectContainer &objects) const;
|
---|
[931] | 506 |
|
---|
[850] | 507 | /** Load the bounding boxes into the container.
|
---|
| 508 | */
|
---|
| 509 | bool LoadBoundingBoxes(const string filename, IndexedBoundingBoxContainer &boxes) const;
|
---|
[840] | 510 |
|
---|
[1002] | 511 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 512 | */
|
---|
| 513 | bool GetExportPvs() const;
|
---|
[870] | 514 |
|
---|
[1786] | 515 | /** Efficiently merges the view cells in the container.
|
---|
| 516 | */
|
---|
[1787] | 517 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 518 | const ViewCellContainer &viewCells) const;
|
---|
[1786] | 519 |
|
---|
[1845] | 520 | virtual void CompressViewCells();
|
---|
| 521 |
|
---|
[2017] | 522 | ViewCell *GetViewCellById(const int id);
|
---|
| 523 |
|
---|
| 524 | /** Returns number of view cells.
|
---|
| 525 | */
|
---|
[1982] | 526 | int GetNumViewCells() const;
|
---|
| 527 |
|
---|
[2017] | 528 | bool GenerateRandomViewCells(ViewCellContainer &viewCells,
|
---|
| 529 | const int numViewCells);
|
---|
| 530 |
|
---|
| 531 | bool GenerateRandomViewCells(vector<ViewCellPoints *> &viewCells,
|
---|
| 532 | const int nViewCells,
|
---|
| 533 | const int nViewPoints);
|
---|
| 534 |
|
---|
| 535 |
|
---|
| 536 | bool GenerateViewPoints(ViewCell *viewCell,
|
---|
| 537 | const int numViewPoints,
|
---|
| 538 | SimpleRayContainer &viewPoints);
|
---|
| 539 |
|
---|
| 540 | bool ImportRandomViewCells(const string &filename,
|
---|
| 541 | vector<ViewCellPoints *> &viewCells);
|
---|
| 542 |
|
---|
| 543 |
|
---|
| 544 | bool ExportRandomViewCells(const string &filename,
|
---|
| 545 | const vector<ViewCellPoints *> &viewCells);
|
---|
| 546 |
|
---|
| 547 | bool GenerateViewPoint(ViewCell *viewCell, SimpleRay &ray);
|
---|
| 548 |
|
---|
| 549 | bool IsValidViewSpace(ViewCell *vc);
|
---|
| 550 |
|
---|
| 551 | //////////////
|
---|
[1582] | 552 | // static members
|
---|
| 553 |
|
---|
| 554 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 555 | respect to the loaded view cells.
|
---|
[870] | 556 |
|
---|
[1582] | 557 | @param filename the filename of the view cells
|
---|
| 558 | @param objects the scene objects
|
---|
| 559 | @param finalizeViewCells if the view cells should be post processed, i.e.
|
---|
| 560 | a mesh is created representing the geometry
|
---|
| 561 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
[1932] | 562 | boxes: if there is a certain similarity of overlap between
|
---|
| 563 | bounding boxes, two tested
|
---|
[1582] | 564 | candidate objects are considered to be the same objects
|
---|
| 565 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 566 | */
|
---|
| 567 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 568 | ObjectContainer *objects,
|
---|
[1676] | 569 | bool finalizeViewCells = false,
|
---|
[1582] | 570 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 571 |
|
---|
[904] | 572 |
|
---|
[931] | 573 | ////////////////////////////////////////////////////////7
|
---|
| 574 | // visiblity filter options
|
---|
[1294] | 575 |
|
---|
[931] | 576 | // TODO: write own visibiltiy filter class
|
---|
[1761] | 577 | void ApplyFilter(KdTree *kdTree,
|
---|
[1932] | 578 | const float viewSpaceFilterSize,
|
---|
| 579 | const float spatialFilterSize);
|
---|
[904] | 580 |
|
---|
[1715] | 581 | // new adaptive version of the filter
|
---|
[1761] | 582 | PvsFilterStatistics
|
---|
[1715] | 583 | ApplyFilter2(ViewCell *viewCell,
|
---|
[1932] | 584 | const bool useViewSpaceFilter,
|
---|
| 585 | const float filterSize,
|
---|
| 586 | ObjectPvs &pvs,
|
---|
| 587 | vector<AxisAlignedBox3> *filteredBoxes = NULL);
|
---|
[1715] | 588 |
|
---|
[931] | 589 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 590 | const float spatialFilterSize,
|
---|
| 591 | ObjectPvs &pvs);
|
---|
[480] | 592 |
|
---|
[931] | 593 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 594 | KdTree *kdTree,
|
---|
| 595 | const float viewSpaceFilterSize,
|
---|
| 596 | const float spatialFilterSize,
|
---|
| 597 | ObjectPvs &pvs);
|
---|
| 598 |
|
---|
| 599 | float GetFilterWidth();
|
---|
| 600 |
|
---|
| 601 | float GetAbsFilterWidth();
|
---|
| 602 |
|
---|
[697] | 603 | /** Returns the bounding box of filter width.
|
---|
| 604 | */
|
---|
| 605 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint, const float width) const;
|
---|
[609] | 606 |
|
---|
[1294] | 607 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 608 |
|
---|
[1155] | 609 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 610 | */
|
---|
| 611 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 612 |
|
---|
| 613 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 614 | **/
|
---|
| 615 | bool GetStoreKdPVs() const;
|
---|
| 616 |
|
---|
[1570] | 617 | /** Exports single view cells for visualization.
|
---|
| 618 | @param objects the scene objects
|
---|
| 619 | @param limit the maximal number of output view cells
|
---|
| 620 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 621 | @param exportPvs if the pvs should also be exported
|
---|
| 622 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 623 | @param maxRays maximum number of rays to export
|
---|
| 624 | @param prefix the prefix for the output file
|
---|
[1570] | 625 | @param visRays additional rays
|
---|
| 626 | */
|
---|
[1686] | 627 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 628 | const int maxViewCells,
|
---|
| 629 | const bool sortViewCells,
|
---|
| 630 | const bool exportPvs,
|
---|
| 631 | const bool exportRays,
|
---|
| 632 | const int maxRays,
|
---|
| 633 | const string prefix,
|
---|
| 634 | VssRayContainer *visRays = NULL) = NULL;
|
---|
[1570] | 635 |
|
---|
[1932] | 636 |
|
---|
[1580] | 637 | void ViewCellsManager::ResetPvs();
|
---|
| 638 |
|
---|
[1932] | 639 | Preprocessor *GetPreprocessor() const {
|
---|
| 640 | return mPreprocessor;
|
---|
| 641 | }
|
---|
[1580] | 642 |
|
---|
[1932] | 643 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 644 | mPreprocessor = p;
|
---|
| 645 | }
|
---|
[1608] | 646 |
|
---|
[1932] | 647 | void UpdatePvsForEvaluation();
|
---|
| 648 |
|
---|
[931] | 649 | protected:
|
---|
[1145] | 650 |
|
---|
[1932] | 651 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 652 | VssRay &ray,
|
---|
| 653 | Intersectable *obj,
|
---|
| 654 | const Vector3 &pt,
|
---|
| 655 | const bool addRays);
|
---|
| 656 |
|
---|
[1787] | 657 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 658 | const ViewCellContainer &viewCells,
|
---|
| 659 | const int leftIdx,
|
---|
| 660 | const int rightIdx) const;
|
---|
| 661 |
|
---|
[697] | 662 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
[1932] | 663 | @returns number of view cells found
|
---|
[697] | 664 | */
|
---|
[710] | 665 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 666 | ViewCellContainer &viewCells) const;
|
---|
[697] | 667 |
|
---|
[880] | 668 | /** Tests the visibility filter functionality.
|
---|
| 669 | */
|
---|
[697] | 670 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
| 671 |
|
---|
[931] | 672 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 673 | */
|
---|
| 674 | bool ViewCellsTreeConstructed() const;
|
---|
| 675 |
|
---|
[1294] | 676 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 677 | */
|
---|
[574] | 678 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 679 | const vector<int> &strategies,
|
---|
[574] | 680 | VssRayContainer &vssRays) const;
|
---|
[573] | 681 |
|
---|
[1903] | 682 | int CastPassSamples2(const int samplesPerPass,
|
---|
| 683 | VssRayContainer &passSamples) const;
|
---|
| 684 |
|
---|
[931] | 685 | /** Parse the options from the environment file.
|
---|
| 686 | */
|
---|
[482] | 687 | void ParseEnvironment();
|
---|
| 688 |
|
---|
[508] | 689 | /** Creates unique view cell ids.
|
---|
| 690 | */
|
---|
| 691 | void CreateUniqueViewCellIds();
|
---|
[547] | 692 |
|
---|
[551] | 693 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 694 | */
|
---|
| 695 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 696 |
|
---|
[480] | 697 | /** Recollects view cells and resets statistics.
|
---|
| 698 | */
|
---|
| 699 | void ResetViewCells();
|
---|
[1932] | 700 |
|
---|
[1707] | 701 | /** Sets this view cell to active.
|
---|
| 702 | */
|
---|
| 703 | void SetViewCellActive(ViewCell *vc) const;
|
---|
| 704 |
|
---|
[480] | 705 | /** Collects the view cells in the view cell container.
|
---|
| 706 | */
|
---|
| 707 | virtual void CollectViewCells() = 0;
|
---|
[1932] | 708 |
|
---|
[479] | 709 | /** Evaluates view cells statistics and stores it in
|
---|
[1932] | 710 | mViewCellsStatistics.
|
---|
[479] | 711 | */
|
---|
| 712 | void EvaluateViewCellsStats();
|
---|
[482] | 713 |
|
---|
[1932] | 714 |
|
---|
[1416] | 715 | ///////////////////////
|
---|
[482] | 716 | //-- helper functions for view cell visualization
|
---|
| 717 |
|
---|
| 718 | /** Exports the view cell partition.
|
---|
| 719 | */
|
---|
[1686] | 720 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 721 | const AxisAlignedBox3 *box,
|
---|
[1760] | 722 | const bool colorCode,
|
---|
[1932] | 723 | const AxisAlignedPlane *clipPlane) const;
|
---|
[482] | 724 |
|
---|
| 725 | /** Sets exporter color.
|
---|
| 726 | */
|
---|
[1773] | 727 | virtual void ExportColor(Exporter *exporter,
|
---|
| 728 | ViewCell *vc,
|
---|
| 729 | const bool colorCode) const;
|
---|
[1932] | 730 |
|
---|
[1416] | 731 | /** Creates meshes from the view cells.
|
---|
| 732 | */
|
---|
| 733 | void CreateViewCellMeshes();
|
---|
[1545] | 734 |
|
---|
[1932] | 735 | /** Creates clip plane for visualization.
|
---|
[1416] | 736 | */
|
---|
| 737 | void CreateClipPlane();
|
---|
[482] | 738 |
|
---|
[1416] | 739 | AxisAlignedPlane *GetClipPlane();
|
---|
[1932] | 740 |
|
---|
[1551] | 741 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 742 |
|
---|
[1416] | 743 | ///////////////////////
|
---|
| 744 |
|
---|
[1002] | 745 | /** Returns volume of the view space.
|
---|
| 746 | */
|
---|
[557] | 747 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 748 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 749 | */
|
---|
[577] | 750 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 751 | /** Constructs local view cell merge hierarchy.
|
---|
| 752 | */
|
---|
| 753 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
[1932] | 754 | const ViewCellContainer &viewCells);
|
---|
[704] | 755 |
|
---|
[713] | 756 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
[1932] | 757 | current viewcell
|
---|
[713] | 758 | */
|
---|
| 759 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 760 | const ViewCellContainer &viewCells);
|
---|
| 761 |
|
---|
[860] | 762 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 763 | */
|
---|
[1168] | 764 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[752] | 765 |
|
---|
[1679] | 766 | virtual void ExportStats(const string &mergeStats);
|
---|
[1582] | 767 |
|
---|
| 768 |
|
---|
[979] | 769 | ////////////////////////////////////////////////
|
---|
[752] | 770 |
|
---|
[1145] | 771 | Preprocessor *mPreprocessor;
|
---|
[1902] | 772 |
|
---|
[1145] | 773 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 774 | bool mExportBboxesForPvs;
|
---|
[1902] | 775 |
|
---|
[1416] | 776 | /// the clip plane for visualization
|
---|
| 777 | AxisAlignedPlane mClipPlaneForViz;
|
---|
[1902] | 778 |
|
---|
[1416] | 779 | /// if the visualization is using the clip plane
|
---|
[660] | 780 | bool mUseClipPlaneForViz;
|
---|
[1902] | 781 |
|
---|
[480] | 782 | /// Renders the view cells.
|
---|
| 783 | Renderer *mRenderer;
|
---|
[1902] | 784 |
|
---|
[440] | 785 | /// Loaded view cells
|
---|
[469] | 786 | ViewCellContainer mViewCells;
|
---|
[1902] | 787 |
|
---|
[1416] | 788 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 789 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 790 |
|
---|
[1773] | 791 | std::vector<int> mStrategies;
|
---|
| 792 |
|
---|
[1416] | 793 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 794 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 795 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 796 | */
|
---|
[719] | 797 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 798 |
|
---|
[1416] | 799 | /// maximum number of samples for the view cell construction
|
---|
[440] | 800 | int mConstructionSamples;
|
---|
[574] | 801 | int mSamplesPerPass;
|
---|
| 802 | int mInitialSamples;
|
---|
[440] | 803 | int mPostProcessSamples;
|
---|
| 804 | int mVisualizationSamples;
|
---|
[441] | 805 |
|
---|
[470] | 806 | float mTotalAreaValid;
|
---|
| 807 | float mTotalArea;
|
---|
[475] | 808 |
|
---|
[547] | 809 | int mMaxPvsSize;
|
---|
[562] | 810 | int mMinPvsSize;
|
---|
[547] | 811 | float mMaxPvsRatio;
|
---|
| 812 |
|
---|
[660] | 813 | int mSamplingType;
|
---|
[722] | 814 | int mEvaluationSamplingType;
|
---|
[600] | 815 | int mNumActiveViewCells;
|
---|
[586] | 816 | bool mCompressViewCells;
|
---|
| 817 |
|
---|
[1002] | 818 | /// holds the current view cell statistics
|
---|
[660] | 819 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[487] | 820 | /// the scene bounding box
|
---|
[542] | 821 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 822 |
|
---|
[508] | 823 | /// if view cells should be exported
|
---|
| 824 | bool mExportViewCells;
|
---|
[547] | 825 |
|
---|
[1002] | 826 | // if only valid view cells should be considered for processing
|
---|
[564] | 827 | bool mOnlyValidViewCells;
|
---|
[547] | 828 |
|
---|
[580] | 829 | /// if rays should be used to collect merge candidates
|
---|
| 830 | bool mUseRaysForMerge;
|
---|
[1021] | 831 |
|
---|
[1002] | 832 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 833 | bool mMergeViewCells;
|
---|
[697] | 834 |
|
---|
| 835 | /// the width of the box filter
|
---|
| 836 | float mFilterWidth;
|
---|
[1570] | 837 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 838 | int mMaxFilterSize;
|
---|
[1570] | 839 |
|
---|
[1576] | 840 | // only for debugging
|
---|
[1686] | 841 | VssRayContainer storedRays;
|
---|
| 842 |
|
---|
[1902] | 843 | bool mUseKdPvs;
|
---|
[1974] | 844 | bool mUseKdPvsAfterFiltering;
|
---|
[1902] | 845 |
|
---|
[1903] | 846 | MixtureDistribution *mMixtureDistribution;
|
---|
| 847 |
|
---|
[1545] | 848 | //////////////////
|
---|
[487] | 849 | //-- visualization options
|
---|
| 850 |
|
---|
[1002] | 851 | /// color code for view cells visualization
|
---|
[1570] | 852 | bool mShowVisualization;
|
---|
[487] | 853 | int mColorCode;
|
---|
| 854 | bool mExportGeometry;
|
---|
| 855 | bool mExportRays;
|
---|
[517] | 856 | bool mViewCellsFinished;
|
---|
[664] | 857 | bool mEvaluateViewCells;
|
---|
[844] | 858 |
|
---|
| 859 | /// if pvs should be exported with view cells
|
---|
| 860 | bool mExportPvs;
|
---|
[1155] | 861 |
|
---|
[1703] | 862 | static int sRenderCostEvaluationType;
|
---|
| 863 |
|
---|
| 864 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 865 | bool mUsePredefinedViewCells;
|
---|
[1942] | 866 |
|
---|
| 867 |
|
---|
| 868 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
[1983] | 869 | SamplesStatistics mSamplesStat;
|
---|
[440] | 870 | };
|
---|
| 871 |
|
---|
[441] | 872 |
|
---|
[1545] | 873 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 874 | */
|
---|
| 875 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 876 | {
|
---|
| 877 |
|
---|
| 878 | public:
|
---|
[485] | 879 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 880 | used to construct the bsp tree.
|
---|
| 881 | */
|
---|
[1264] | 882 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 883 |
|
---|
[477] | 884 | ~BspViewCellsManager();
|
---|
[1582] | 885 |
|
---|
[574] | 886 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 887 | const VssRayContainer &rays);
|
---|
[440] | 888 |
|
---|
| 889 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 890 | const VssRayContainer &rays);
|
---|
[440] | 891 |
|
---|
| 892 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 893 | const VssRayContainer &sampleRays);
|
---|
[440] | 894 |
|
---|
| 895 | int GetType() const;
|
---|
| 896 |
|
---|
| 897 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 898 |
|
---|
| 899 | bool ViewCellsConstructed() const;
|
---|
| 900 |
|
---|
[475] | 901 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 902 |
|
---|
[468] | 903 | int CastLineSegment(const Vector3 &origin,
|
---|
| 904 | const Vector3 &termination,
|
---|
| 905 | ViewCellContainer &viewcells);
|
---|
| 906 |
|
---|
[1294] | 907 | /** Returns the probability that the view point lies
|
---|
| 908 | in this view cells.
|
---|
| 909 | */
|
---|
[471] | 910 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 911 |
|
---|
[1294] | 912 | /** Get a viewcell containing the specified point.
|
---|
[879] | 913 | */
|
---|
| 914 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 915 |
|
---|
[1294] | 916 | /** Creates mesh for this view cell.
|
---|
| 917 | */
|
---|
[503] | 918 | void CreateMesh(ViewCell *vc);
|
---|
| 919 |
|
---|
[1416] | 920 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 921 | ViewCell *vc,
|
---|
| 922 | const AxisAlignedBox3 *box,
|
---|
| 923 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 924 | ) const;
|
---|
[580] | 925 |
|
---|
[587] | 926 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 927 | vector<MergeCandidate> &candidates);
|
---|
[547] | 928 |
|
---|
[587] | 929 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 930 |
|
---|
[1416] | 931 | bool ExportViewCells(const string filename,
|
---|
| 932 | const bool exportPvs,
|
---|
| 933 | const ObjectContainer &objects);
|
---|
[590] | 934 |
|
---|
[752] | 935 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 936 | */
|
---|
[650] | 937 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 938 |
|
---|
[1686] | 939 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 940 | const int maxViewCells,
|
---|
| 941 | const bool sortViewCells,
|
---|
| 942 | const bool exportPvs,
|
---|
| 943 | const bool exportRays,
|
---|
| 944 | const int maxRays,
|
---|
| 945 | const string prefix,
|
---|
| 946 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 947 |
|
---|
[1977] | 948 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 949 | const Vector3 &termination,
|
---|
| 950 | ViewCell *viewCell);
|
---|
| 951 |
|
---|
[440] | 952 | protected:
|
---|
| 953 |
|
---|
[480] | 954 | void CollectViewCells();
|
---|
[547] | 955 |
|
---|
[440] | 956 | /// the BSP tree.
|
---|
| 957 | BspTree *mBspTree;
|
---|
[475] | 958 | vector<BspRay *> mBspRays;
|
---|
[440] | 959 |
|
---|
| 960 | private:
|
---|
| 961 |
|
---|
[1545] | 962 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 963 | */
|
---|
| 964 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
| 965 |
|
---|
[440] | 966 | /** Exports visualization of the BSP splits.
|
---|
| 967 | */
|
---|
[477] | 968 | void ExportSplits(const ObjectContainer &objects);
|
---|
[440] | 969 |
|
---|
[1002] | 970 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 971 | */
|
---|
[693] | 972 | void TestSubdivision();
|
---|
[440] | 973 | };
|
---|
| 974 |
|
---|
[1545] | 975 |
|
---|
[440] | 976 | /**
|
---|
| 977 | Manages different higher order operations on the KD type view cells.
|
---|
| 978 | */
|
---|
| 979 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 980 | {
|
---|
| 981 |
|
---|
| 982 | public:
|
---|
| 983 |
|
---|
[1264] | 984 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 985 |
|
---|
[574] | 986 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 987 | const VssRayContainer &rays);
|
---|
[440] | 988 |
|
---|
[478] | 989 | int CastLineSegment(const Vector3 &origin,
|
---|
| 990 | const Vector3 &termination,
|
---|
| 991 | ViewCellContainer &viewcells);
|
---|
[440] | 992 |
|
---|
| 993 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 994 | const VssRayContainer &rays);
|
---|
[440] | 995 |
|
---|
| 996 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 997 | const VssRayContainer &sampleRays);
|
---|
[440] | 998 |
|
---|
| 999 | int GetType() const;
|
---|
| 1000 |
|
---|
| 1001 | bool ViewCellsConstructed() const;
|
---|
| 1002 |
|
---|
[580] | 1003 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 1004 |
|
---|
[452] | 1005 | /** Prints out statistics of this approach.
|
---|
| 1006 | */
|
---|
[503] | 1007 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 1008 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 1009 | { return NULL; }
|
---|
[452] | 1010 |
|
---|
[503] | 1011 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 1012 |
|
---|
[503] | 1013 | void CreateMesh(ViewCell *vc);
|
---|
| 1014 |
|
---|
[1686] | 1015 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1016 | ViewCell *vc,
|
---|
| 1017 | const AxisAlignedBox3 *box,
|
---|
| 1018 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 1019 |
|
---|
[1416] | 1020 |
|
---|
[591] | 1021 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1022 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1023 |
|
---|
[1686] | 1024 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1025 | const int maxViewCells,
|
---|
| 1026 | const bool sortViewCells,
|
---|
| 1027 | const bool exportPvs,
|
---|
| 1028 | const bool exportRays,
|
---|
| 1029 | const int maxRays,
|
---|
| 1030 | const string prefix,
|
---|
| 1031 | VssRayContainer *visRays = NULL);
|
---|
[752] | 1032 |
|
---|
[1977] | 1033 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1034 | const Vector3 &termination,
|
---|
| 1035 | ViewCell *viewCell);
|
---|
| 1036 |
|
---|
[440] | 1037 | protected:
|
---|
| 1038 |
|
---|
[580] | 1039 | /** Collects view cells from a hierarchy.
|
---|
| 1040 | */
|
---|
[480] | 1041 | void CollectViewCells();
|
---|
[580] | 1042 |
|
---|
[480] | 1043 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 1044 |
|
---|
[1570] | 1045 | ////////////////////////////////////////
|
---|
[440] | 1046 |
|
---|
[480] | 1047 | /// the BSP tree.
|
---|
| 1048 | KdTree *mKdTree;
|
---|
[440] | 1049 |
|
---|
[480] | 1050 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 1051 | int mKdPvsDepth;
|
---|
[938] | 1052 |
|
---|
| 1053 |
|
---|
[440] | 1054 | };
|
---|
| 1055 |
|
---|
[1570] | 1056 |
|
---|
| 1057 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 1058 | */
|
---|
| 1059 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 1060 | {
|
---|
| 1061 |
|
---|
| 1062 | public:
|
---|
| 1063 |
|
---|
[1264] | 1064 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 1065 | ~VspBspViewCellsManager();
|
---|
[442] | 1066 |
|
---|
[574] | 1067 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1068 | const VssRayContainer &rays);
|
---|
[442] | 1069 |
|
---|
| 1070 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1071 | const VssRayContainer &rays);
|
---|
[442] | 1072 |
|
---|
| 1073 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1074 | const VssRayContainer &sampleRays);
|
---|
[442] | 1075 |
|
---|
| 1076 | int GetType() const;
|
---|
| 1077 |
|
---|
| 1078 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1079 |
|
---|
| 1080 | bool ViewCellsConstructed() const;
|
---|
[468] | 1081 |
|
---|
| 1082 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1083 | const Vector3 &termination,
|
---|
| 1084 | ViewCellContainer &viewcells);
|
---|
[452] | 1085 |
|
---|
[471] | 1086 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 1087 |
|
---|
[879] | 1088 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 1089 |
|
---|
[487] | 1090 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1091 |
|
---|
[490] | 1092 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 1093 |
|
---|
| 1094 | void CreateMesh(ViewCell *vc);
|
---|
| 1095 |
|
---|
[1686] | 1096 | bool ExportViewCells(const string filename,
|
---|
| 1097 | const bool exportPvs,
|
---|
| 1098 | const ObjectContainer &objects);
|
---|
[508] | 1099 |
|
---|
[532] | 1100 | int CastBeam(Beam &beam);
|
---|
[1416] | 1101 |
|
---|
[1686] | 1102 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1103 | ViewCell *vc,
|
---|
| 1104 | const AxisAlignedBox3 *box,
|
---|
| 1105 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 1106 |
|
---|
[547] | 1107 |
|
---|
[555] | 1108 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1109 |
|
---|
[1686] | 1110 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1111 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1112 |
|
---|
[1686] | 1113 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1114 | const int maxViewCells,
|
---|
| 1115 | const bool sortViewCells,
|
---|
| 1116 | const bool exportPvs,
|
---|
| 1117 | const bool exportRays,
|
---|
| 1118 | const int maxRays,
|
---|
| 1119 | const string prefix,
|
---|
| 1120 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1121 |
|
---|
[1920] | 1122 |
|
---|
[1977] | 1123 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1124 | const Vector3 &termination,
|
---|
| 1125 | ViewCell *viewCell);
|
---|
| 1126 |
|
---|
[442] | 1127 | protected:
|
---|
[475] | 1128 |
|
---|
[1686] | 1129 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1130 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1131 |
|
---|
[1021] | 1132 | /** Merges view cells according to some criteria
|
---|
[442] | 1133 | */
|
---|
[508] | 1134 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1135 | const ObjectContainer &objects);
|
---|
[503] | 1136 |
|
---|
[564] | 1137 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1138 |
|
---|
[480] | 1139 | void CollectViewCells();
|
---|
| 1140 |
|
---|
[482] | 1141 | /** Returns maximal depth difference of view cell
|
---|
| 1142 | leaves in tree.
|
---|
| 1143 | */
|
---|
| 1144 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1145 |
|
---|
[752] | 1146 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1147 | */
|
---|
[577] | 1148 | void PrepareLoadedViewCells();
|
---|
| 1149 |
|
---|
[752] | 1150 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1151 | */
|
---|
[650] | 1152 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1153 |
|
---|
[979] | 1154 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1155 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1156 |
|
---|
[979] | 1157 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1158 | from point queries.
|
---|
| 1159 | */
|
---|
| 1160 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1161 |
|
---|
[991] | 1162 | /** Evaluate from point queries for the current scene.
|
---|
| 1163 | */
|
---|
| 1164 | void EvalFromPointQueries();
|
---|
[979] | 1165 |
|
---|
[1021] | 1166 | /** Exports visualization of the BSP splits.
|
---|
| 1167 | */
|
---|
| 1168 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1169 | const VssRayContainer &rays);
|
---|
[991] | 1170 |
|
---|
[1686] | 1171 |
|
---|
| 1172 | /////////////////////////
|
---|
| 1173 |
|
---|
[442] | 1174 | /// the view space partition BSP tree.
|
---|
| 1175 | VspBspTree *mVspBspTree;
|
---|
| 1176 |
|
---|
[591] | 1177 |
|
---|
[442] | 1178 | private:
|
---|
| 1179 |
|
---|
[1021] | 1180 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1181 | */
|
---|
[1021] | 1182 | void TestSubdivision();
|
---|
| 1183 | };
|
---|
[442] | 1184 |
|
---|
[1662] | 1185 | #define TEST_EVALUATION 0
|
---|
[1021] | 1186 |
|
---|
| 1187 | /**
|
---|
| 1188 | Manages different higher order operations on the view cells.
|
---|
| 1189 | */
|
---|
| 1190 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1191 | {
|
---|
[1740] | 1192 | friend class ViewCellsParseHandlers;
|
---|
[1977] | 1193 |
|
---|
[1021] | 1194 | public:
|
---|
| 1195 |
|
---|
[1740] | 1196 | VspOspViewCellsManager(ViewCellsTree *vcTree, const string &hierarchyType);
|
---|
[1278] | 1197 |
|
---|
[1021] | 1198 | ~VspOspViewCellsManager();
|
---|
| 1199 |
|
---|
| 1200 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1201 | const VssRayContainer &rays);
|
---|
| 1202 |
|
---|
| 1203 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1204 | const VssRayContainer &rays);
|
---|
| 1205 |
|
---|
[1686] | 1206 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1207 | const VssRayContainer &sampleRays);
|
---|
| 1208 |
|
---|
| 1209 | int GetType() const;
|
---|
| 1210 |
|
---|
| 1211 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1212 |
|
---|
[1977] | 1213 | virtual Intersectable *GetIntersectable(
|
---|
| 1214 | const VssRay &ray, const bool isTermination) const;
|
---|
[1743] | 1215 |
|
---|
[1021] | 1216 | bool ViewCellsConstructed() const;
|
---|
| 1217 |
|
---|
| 1218 |
|
---|
| 1219 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1220 | const Vector3 &termination,
|
---|
| 1221 | ViewCellContainer &viewcells);
|
---|
| 1222 |
|
---|
[1977] | 1223 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1224 | const Vector3 &termination,
|
---|
| 1225 | ViewCell *viewCell);
|
---|
| 1226 |
|
---|
[1021] | 1227 | float GetProbability(ViewCell *viewCell);
|
---|
| 1228 |
|
---|
| 1229 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
| 1230 |
|
---|
| 1231 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1232 |
|
---|
| 1233 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1234 |
|
---|
| 1235 | void CreateMesh(ViewCell *vc);
|
---|
| 1236 |
|
---|
[1027] | 1237 | bool ExportViewCells(const string filename,
|
---|
| 1238 | const bool exportPvs,
|
---|
| 1239 | const ObjectContainer &objects);
|
---|
[1021] | 1240 |
|
---|
| 1241 | int CastBeam(Beam &beam);
|
---|
| 1242 |
|
---|
| 1243 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1244 |
|
---|
[1977] | 1245 | ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[1666] | 1246 | ObjectContainer *objects,
|
---|
| 1247 | const bool finalizeViewCells,
|
---|
| 1248 | BoundingBoxConverter *bconverter);
|
---|
[1201] | 1249 |
|
---|
[1666] | 1250 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1251 | const int maxViewCells,
|
---|
| 1252 | const bool sortViewCells,
|
---|
| 1253 | const bool exportPvs,
|
---|
| 1254 | const bool exportRays,
|
---|
| 1255 | const int maxRays,
|
---|
| 1256 | const string prefix,
|
---|
| 1257 | VssRayContainer *visRays = NULL);
|
---|
[1920] | 1258 |
|
---|
| 1259 | float UpdateObjectCosts();
|
---|
[1570] | 1260 |
|
---|
[1021] | 1261 | protected:
|
---|
[1180] | 1262 |
|
---|
[1740] | 1263 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1264 |
|
---|
[1709] | 1265 | #if 1//TEST_EVALUATION
|
---|
| 1266 | virtual void EvalViewCellPartition();
|
---|
| 1267 | #endif
|
---|
[1416] | 1268 |
|
---|
[1027] | 1269 | /** Exports view cell geometry.
|
---|
| 1270 | */
|
---|
[1666] | 1271 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1272 | ViewCell *vc,
|
---|
| 1273 | const AxisAlignedBox3 *box,
|
---|
| 1274 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1275 |
|
---|
[1666] | 1276 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1277 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1278 |
|
---|
| 1279 | void CollectViewCells();
|
---|
| 1280 |
|
---|
[1845] | 1281 | virtual void CompressViewCells();
|
---|
| 1282 |
|
---|
[1021] | 1283 | /** Prepare view cells for use after loading them from disc.
|
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| 1284 | */
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| 1285 | void PrepareLoadedViewCells();
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| 1286 |
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| 1287 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
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| 1288 | */
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| 1289 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
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| 1290 |
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[1074] | 1291 | /** Exports visualization of the PVS.
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[442] | 1292 | */
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[1666] | 1293 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
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[442] | 1294 |
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[1740] | 1295 | /** Returns a hierarchy manager of the given name.
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| 1296 | */
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| 1297 | static HierarchyManager *CreateHierarchyManager(const string &name);
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| 1298 |
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[1679] | 1299 | //void ExportStats(const string &mergeStats);
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[1021] | 1300 |
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[1887] | 1301 | /** collect objects intersecting a given spatial box
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[1845] | 1302 | */
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| 1303 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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[1737] | 1304 |
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[1887] | 1305 |
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| 1306 | /////////////////////////////////////////
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| 1307 |
|
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| 1308 |
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| 1309 | bool mCompressObjects;
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| 1310 |
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[1027] | 1311 | HierarchyManager *mHierarchyManager;
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[442] | 1312 | };
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| 1313 |
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[575] | 1314 |
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[860] | 1315 | }
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| 1316 |
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[440] | 1317 | #endif
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