[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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[2105] | 5 | #include "SimpleRay.h"
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[440] | 6 | #include "VssRay.h"
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| 7 | #include "Containers.h"
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[475] | 8 | #include "ViewCell.h"
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[440] | 9 |
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[2332] | 10 | #define TEST_PACKETS 0
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[2176] | 11 |
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[860] | 12 | namespace GtpVisibilityPreprocessor {
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| 13 |
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[440] | 14 | class ViewCell;
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| 15 | class Intersectable;
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| 16 | class RenderSimulator;
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[480] | 17 | class Renderer;
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[440] | 18 | class Mesh;
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| 19 | struct Triangle3;
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| 20 | class SimulationStatistics;
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| 21 | class BspTree;
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| 22 | class KdTree;
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[1006] | 23 | class VspOspTree;
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[440] | 24 | class VspBspTree;
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| 25 | class KdNode;
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| 26 | class KdLeaf;
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| 27 | class AxisAlignedBox3;
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[448] | 28 | class BspLeaf;
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[475] | 29 | class ViewCellsStatistics;
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[482] | 30 | class Exporter;
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[532] | 31 | class Beam;
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[570] | 32 | class Preprocessor;
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[580] | 33 | class ViewCellsTree;
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| 34 | class MergeCandidate;
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[931] | 35 | class BoundingBoxConverter;
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[1021] | 36 | class VspTree;
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| 37 | class OspTree;
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| 38 | class VspNode;
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[1027] | 39 | class HierarchyManager;
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[1259] | 40 | class BvHierarchy;
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[1264] | 41 | class ViewCellsTree;
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[1786] | 42 | class ViewCell;
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[1903] | 43 | class MixtureDistribution;
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[1047] | 44 | struct AxisAlignedPlane;
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[475] | 45 | struct BspRay;
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[2116] | 46 | class BspTree;
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[475] | 47 |
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[1903] | 48 |
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[2015] | 49 |
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[2116] | 50 | struct PvsFilterStatistics
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| 51 | {
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[1773] | 52 | PvsFilterStatistics():
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[2116] | 53 | mAvgFilterRadius(0.0f), mLocalFilterCount(0), mGlobalFilterCount(0) {}
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| 54 |
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[1761] | 55 | float mAvgFilterRadius;
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| 56 | int mLocalFilterCount;
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| 57 | int mGlobalFilterCount;
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[2116] | 58 | };
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| 59 |
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[1145] | 60 | /** Probably Visible Set
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| 61 | */
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[697] | 62 | class PrVs
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| 63 | {
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| 64 | public:
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[2116] | 65 | /// root of view cells tree
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| 66 | ViewCell *mViewCell;
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| 67 | // input parameter is the render budget for the PrVs
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| 68 | float mRenderBudget;
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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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[2116] | 87 | struct PerViewCellStat
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| 88 | {
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| 89 | float pvsSize;
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| 90 | float relPvsIncrease;
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[1983] | 91 | };
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| 92 |
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[2116] | 93 | struct SamplesStatistics
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[728] | 94 | {
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[2116] | 95 | int mRays;
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| 96 | int mViewCells;
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| 97 | int mContributingRays;
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| 98 | int mPvsContributions;
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| 99 | void Reset()
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| 100 | {
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| 101 | mRays = 0;
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| 102 | mViewCells = 0;
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| 103 | mContributingRays = 0;
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| 104 | mPvsContributions = 0;
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| 105 | };
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| 106 | };
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[1974] | 107 |
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[2116] | 108 | struct PvsStatistics
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| 109 | {
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| 110 | float minPvs;
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| 111 | float maxPvs;
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| 112 | float avgPvs;
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[2205] | 113 | float renderCost;
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[2116] | 114 | float avgPvsEntries;
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| 115 |
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| 116 | float avgFilteredPvs;
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| 117 | float avgFilteredPvsEntries;
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| 118 |
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| 119 | float avgFilterContribution;
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| 120 | float avgFilterRadius;
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| 121 | float avgFilterRatio;
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| 122 | float avgRelPvsIncrease;
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| 123 | float devRelPvsIncrease;
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| 124 | int viewcells;
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[2224] | 125 |
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| 126 | float mem;
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[2227] | 127 | float renderCostRatio;
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[1545] | 128 | };
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[1942] | 129 |
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[728] | 130 | /// view cell container types
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[1021] | 131 | enum {BSP, KD, VSP_KD, VSP_BSP, VSP_OSP};
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[466] | 132 |
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[931] | 133 | /// render cost evaluation type
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[728] | 134 | enum {PER_OBJECT, PER_TRIANGLE};
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| 135 |
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[1545] | 136 | friend class X3dViewCellsParseHandlers;
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[1709] | 137 |
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[1004] | 138 | /** Default constructor.
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[440] | 139 | */
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[1264] | 140 | ViewCellsManager(ViewCellsTree *viewCellsTree);
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[2539] | 141 | /** Destructor.
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| 142 | */
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[462] | 143 | virtual ~ViewCellsManager();
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[527] | 144 | /** Constructs view cells container taking a preprocessor
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[570] | 145 | @returns the output rays (if not null)
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| 146 | */
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| 147 | int Construct(Preprocessor *preprocessor, VssRayContainer *outRays = NULL);
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[527] | 148 |
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[440] | 149 | /** Constructs view cell container with a given number of samples.
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| 150 | */
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[1709] | 151 | virtual int ConstructSubdivision(const ObjectContainer &objects,
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| 152 | const VssRayContainer &rays) = 0;
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[440] | 153 |
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[441] | 154 | /** Computes sample contributions of the rays to the view cells PVS.
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| 155 |
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| 156 | @param rays bundle of rays used to find intersections with view cells and
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| 157 | adding the contribution
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[563] | 158 | @param addRays true if rays should be added to the PVSs of the viewcells they
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[574] | 159 | intersect
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| 160 | @param storeViewCells true if view cells should be stored in the ray
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| 161 | */
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[2332] | 162 | virtual float ComputeSampleContributions(const VssRayContainer &rays,
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| 163 | const bool addContributions,
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| 164 | const bool storeViewCells,
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| 165 | const bool useHitObject = false);
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[440] | 166 |
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[475] | 167 | /** Computes sample contribution of a simgle ray to the view cells PVS.
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| 168 | @param ray finds intersections with view cells and holds the contribution
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[1570] | 169 | @param addSample if sample should be added to the pvs
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| 170 |
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[475] | 171 | @returns number of sample contributions
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| 172 | */
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[1159] | 173 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 174 | const bool addContributions,
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[1990] | 175 | const bool storeViewCells,
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| 176 | const bool useHitObject = false);
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[1977] | 177 | /** Compute sample contribution only for current view cell.
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| 178 | */
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| 179 | virtual float ComputeSampleContribution(VssRay &ray,
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[1981] | 180 | const bool addContributions,
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[1990] | 181 | ViewCell *currentViewCell,
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| 182 | const bool useHitObject = false);
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[452] | 183 | /** Prints out statistics of the view cells.
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| 184 | */
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[2176] | 185 | virtual void PrintStatistics(std::ostream &s) const;
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[440] | 186 | /** Post processes view cells givemŽa number of rays.
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| 187 | */
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[475] | 188 | virtual int PostProcess(const ObjectContainer &objects,
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| 189 | const VssRayContainer &rays) = 0;
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[440] | 190 | /** Show visualization of the view cells.
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| 191 | */
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| 192 | virtual void Visualize(const ObjectContainer &objects,
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[466] | 193 | const VssRayContainer &sampleRays) = 0;
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[1982] | 194 | /** collect objects intersecting a given spatial box.
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| 195 | */
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| 196 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
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[440] | 197 | /** type of the view cell container.
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| 198 | */
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| 199 | virtual int GetType() const = 0;
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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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[440] | 209 | /** Merges two view cells.
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| 210 | @note the piercing rays of the front and back will be ordered
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| 211 | @returns new view cell based on the merging.
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| 212 | */
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[582] | 213 | ViewCellInterior *MergeViewCells(ViewCell *front, ViewCell *back) const;
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| 214 | /** Merges a container of view cells.
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| 215 | @returns new view cell based on the merging.
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| 216 | */
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| 217 | ViewCellInterior *MergeViewCells(ViewCellContainer &children) const;
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[1545] | 218 | /** Generates view cell of the type specified by this manager
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[440] | 219 | */
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[580] | 220 | virtual ViewCell *GenerateViewCell(Mesh *mesh = NULL) const = 0;
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[1545] | 221 | /** Constructs view cell from base triangle.
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| 222 | The view cell is extruded along the normal vector.
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| 223 | @param the base triangle
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| 224 | @param the height of the newly created view cell
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[440] | 225 | */
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[1545] | 226 | ViewCell *ExtrudeViewCell(const Triangle3 &baseTri, const float height) const;
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[2539] | 227 | /** Returns the intersectable that was hit by the ray.
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| 228 | */
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[1982] | 229 | virtual Intersectable *GetIntersectable(const VssRay &ray, const bool isTermination) const;
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[440] | 230 | /** Sets maximal number of samples used for the
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| 231 | construction of the view cells.
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| 232 | */
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| 233 | void SetVisualizationSamples(const int visSamples);
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[574] | 234 | /** Sets maximal number of samples used for the construction of the view cells.
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[440] | 235 | */
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| 236 | void SetConstructionSamples(const int constructionSamples);
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[574] | 237 | /** Sets maximal number of samples used for the visualization of the view cells.
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| 238 | */
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| 239 | void SetInitialSamples(const int initialSamples);
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[440] | 240 | /** Sets maximal number of samples used for the post processing of the view cells.
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| 241 | */
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| 242 | void SetPostProcessSamples(const int postProcessingSamples);
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| 243 | /** See set.
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| 244 | */
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| 245 | int GetVisualizationSamples() const;
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| 246 | /** See set.
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| 247 | */
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| 248 | int GetConstructionSamples() const;
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| 249 | /** See set.
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| 250 | */
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| 251 | int GetPostProcessSamples() const;
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[1002] | 252 | /** Returns true if view cells are already constructed.
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[440] | 253 | */
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| 254 | virtual bool ViewCellsConstructed() const = 0;
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[477] | 255 | /** cast line segment to get a list of unique viewcells which are intersected
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| 256 | by this line segment
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| 257 | */
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[1977] | 258 | virtual int CastLineSegment(const Vector3 &origin,
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[2539] | 259 | const Vector3 &termination,
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| 260 | ViewCellContainer &viewcells) = 0;
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[1977] | 261 | /** Tests if this line segment intersects a particular view cell.
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| 262 | */
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| 263 | virtual bool LineSegmentIntersects(const Vector3 &origin,
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| 264 | const Vector3 &termination,
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| 265 | ViewCell *viewCell) = 0;
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[1294] | 266 | /** Returns a stats about the global pvs.
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| 267 | */
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[477] | 268 | virtual void GetPvsStatistics(PvsStatistics &stat);
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[2539] | 269 | /** Returns the probably visible set of the view space filtered pvs.
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| 270 | */
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[904] | 271 | virtual void GetPrVS(const Vector3 &viewPoint, PrVs &prvs, const float filterWidth);
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[2111] | 272 | /** Get a viewcell containing the specified view point.
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[879] | 273 | @param active if the active or elementary view cell should be returned.
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[697] | 274 | */
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[879] | 275 | virtual ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const = 0;
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[2539] | 276 | /** Returns the view cell with the given index (different from the id).
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| 277 | */
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[1982] | 278 | ViewCell *GetViewCell(const int idx) const {return mViewCells[idx];}
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[2539] | 279 | /** Prints the statistics over the view cell pvss.
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| 280 | */
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[2176] | 281 | virtual void PrintPvsStatistics(std::ostream &s);
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[719] | 282 | /** Updates pvs of the view cell hierarchy if necessary.
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| 283 | */
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| 284 | void UpdatePvs();
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[477] | 285 | /** Returns probability that view point lies in one view cell.
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| 286 | */
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| 287 | virtual float GetProbability(ViewCell *viewCell) = 0;
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| 288 | /** Returns render cost of a single view cell given the render cost of an object.
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| 289 | */
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[728] | 290 | float GetRendercost(ViewCell *viewCell) const;
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[720] | 291 | /** Returns reference to container of loaded / generated view cells.
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[477] | 292 | */
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| 293 | ViewCellContainer &GetViewCells();
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[485] | 294 | /** Helper function used to split ray sets uniformly
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| 295 | into one that is currently used and the other that
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| 296 | is saved for later processing.
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| 297 | @param sourceRays the input ray set
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| 298 | @param maxSize the maximal number of rays that will be used
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| 299 | @param usedRays returns the used ray set
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| 300 | @param savedRays if not null, returns the saved ray set
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[477] | 301 | */
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| 302 | void GetRaySets(const VssRayContainer &sourceRays,
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[485] | 303 | const int maxSize,
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| 304 | VssRayContainer &usedRays,
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| 305 | VssRayContainer *savedRays = NULL) const;
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[480] | 306 | /** Returns accumulated area of all view cells.
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| 307 | */
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| 308 | float GetAccVcArea();
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| 309 | /** Returns area of one view cell.
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| 310 | */
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| 311 | virtual float GetArea(ViewCell *viewCell) const;
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[551] | 312 | /** Returns volume of view cell.
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[480] | 313 | */
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| 314 | virtual float GetVolume(ViewCell *viewCell) const;
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| 315 | /** Sets the current renderer mainly for view cells statistics.
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| 316 | */
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| 317 | void SetRenderer(Renderer *renderer);
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[487] | 318 | /** Computes a (random) view point in the valid view space.
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| 319 | @returns true if valid view point was found
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| 320 | */
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| 321 | virtual bool GetViewPoint(Vector3 &viewPoint) const;
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[2539] | 322 | /** Returns the current view point given a vector for activating the halton sequence.
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| 323 | */
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[1982] | 324 | virtual bool GetViewPoint(Vector3 &viewPoint, const Vector3 ¶ms) const;
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[490] | 325 | /** Returns true if this view point is in the valid view space.
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| 326 | */
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| 327 | virtual bool ViewPointValid(const Vector3 &viewPoint) const;
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[487] | 328 | /** Sets a view space boundary.
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| 329 | */
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| 330 | void SetViewSpaceBox(const AxisAlignedBox3 &box);
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[2539] | 331 | /** Returns the boundaries of the view space.
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| 332 | */
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[519] | 333 | AxisAlignedBox3 GetViewSpaceBox() const;
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[503] | 334 | /** Creates mesh for this view cell.
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| 335 | */
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| 336 | virtual void CreateMesh(ViewCell *vc) = NULL;
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[508] | 337 | /** Writes view cells to disc.
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| 338 | */
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[1027] | 339 | virtual bool ExportViewCells(const string filename,
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| 340 | const bool exportPvs,
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| 341 | const ObjectContainer &objects);
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[532] | 342 | /** Casts beam to collect view cells.
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| 343 | */
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| 344 | virtual int CastBeam(Beam &beam);
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[547] | 345 | /** Checks if view cell is considered as valid.
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| 346 | */
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[561] | 347 | virtual bool CheckValidity(ViewCell *vc,
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[562] | 348 | int minPvsSize,
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| 349 | int maxPvsSize) const;
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[2539] | 350 | /** Resort pvss after a pass of the algorithm.
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| 351 | */
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[2117] | 352 | void SortViewCellPvs();
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[2539] | 353 | /** Map the ray intersection objects from triangles to high level objects.
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| 354 | */
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[2117] | 355 | void DeterminePvsObjects(VssRayContainer &rays,
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| 356 | const bool useHitObjects = false);
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[562] | 357 | /** Sets validity of view cell
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| 358 | */
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| 359 | virtual void SetValidity(ViewCell *vc,
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| 360 | int minPvsSize,
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| 361 | int maxPvsSize) const;
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[710] | 362 | /** sets validy of all viewcells
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| 363 | */
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[2539] | 364 | virtual void SetValidity(int minPvsSize, int maxPvsSize) const;
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[2117] | 365 | /** Set valid viewcells in the range of pvs. sorts the viewcells
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| 366 | according to the pvs and then pickups those in the ranges
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| 367 | */
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[710] | 368 | void SetValidityPercentage(const float minValid, const float maxValid);
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[1545] | 369 | /** Returns number of valid view cells.
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| 370 | */
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[609] | 371 | int CountValidViewcells() const;
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[547] | 372 | /** Returns maximal allowed pvs size.
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| 373 | */
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| 374 | int GetMaxPvsSize() const;
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[562] | 375 | /** Returns maximal allowed pvs size.
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| 376 | */
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| 377 | int GetMinPvsSize() const;
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[561] | 378 | /** Returns maximal ratio. i.e., currentPVs / maxPvs,
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| 379 | where pvs is still considered valid.
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| 380 | */
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| 381 | float GetMaxPvsRatio() const;
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[547] | 382 | /** Exports view cell geometry.
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| 383 | */
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[2117] | 384 | virtual void ExportViewCellGeometry(Exporter *exporter,
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| 385 | ViewCell *vc,
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| 386 | const AxisAlignedBox3 *box,
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| 387 | const AxisAlignedPlane *clipPlane = NULL
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| 388 | ) const = 0;
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[860] | 389 | /** Brings the view cells into their final state, computes meshes and volume.
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| 390 | */
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[551] | 391 | virtual void FinalizeViewCells(const bool createMesh);
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[579] | 392 | /** Evaluates statistics values on view cells.
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| 393 | */
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[580] | 394 | void EvaluateRenderStatistics(float &totalRenderCost,
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| 395 | float &expectedRenderCost,
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| 396 | float &deviation,
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| 397 | float &variance,
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[1709] | 398 | float &totalPvs,
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[580] | 399 | float &avgRenderCost);
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| 400 | /** Returns hierarchy of the view cells.
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| 401 | */
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| 402 | ViewCellsTree *GetViewCellsTree();
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[1545] | 403 | /** Collect candidates for the view cell merge.
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| 404 | */
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[581] | 405 | virtual void CollectMergeCandidates(const VssRayContainer &rays,
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[1022] | 406 | vector<MergeCandidate> &candidates);
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[1294] | 407 | /** Collects n view cells and stores it as the active view cells.
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| 408 | */
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[610] | 409 | void CollectViewCells(const int n);
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[1686] | 410 | /** Sets current view cells set to active,
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| 411 | i.e., the sampling is done in this view cell set.
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[660] | 412 | */
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| 413 | void SetViewCellsActive();
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[1145] | 414 | /** Evaluates render cost statistics of current view cell hierarchy.
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[660] | 415 | */
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[1178] | 416 | virtual void EvalViewCellPartition();
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[728] | 417 | /** Sets maximal size of a view cell filter.
|
---|
| 418 | */
|
---|
| 419 | void SetMaxFilterSize(const int size);
|
---|
[840] | 420 | /** Returns maximal filter size.
|
---|
| 421 | */
|
---|
| 422 | int GetMaxFilterSize() const;
|
---|
[1686] | 423 | /** Deletes interior nodes from the tree which have negative
|
---|
| 424 | merge cost set (local merge).
|
---|
[840] | 425 | */
|
---|
| 426 | void DeleteLocalMergeTree(ViewCell *vc) const;
|
---|
[728] | 427 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 428 | */
|
---|
| 429 | void EvalViewCellHistogram(const string filename, const int nViewCells);
|
---|
[735] | 430 | /** Evaluautes histogram for a given number of view cells.
|
---|
| 431 | */
|
---|
[2117] | 432 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 433 | const int nViewCells);
|
---|
[2539] | 434 | /** Evaluautes histogram for a given vector of view cells.
|
---|
| 435 | */
|
---|
[1919] | 436 | void EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 437 | ViewCellContainer &viewCells);
|
---|
[2332] | 438 | float ComputeRenderCost(const int tri, const int obj); //const
|
---|
[1002] | 439 | /** Sets pvs size of view cell as a scalar. Used when storing pvs only in the leaves
|
---|
| 440 | of the hierarchy.
|
---|
| 441 | */
|
---|
[2117] | 442 | void UpdateScalarPvsSize(ViewCell *vc,
|
---|
| 443 | const float pvsCost,
|
---|
| 444 | const int entriesInPvs) const;
|
---|
[870] | 445 | /** Returns bounding box of a view cell.
|
---|
| 446 | */
|
---|
| 447 | AxisAlignedBox3 GetViewCellBox(ViewCell *vc);
|
---|
[840] | 448 | /** Exports bounding boxes of objects to file.
|
---|
| 449 | */
|
---|
[2117] | 450 | bool ExportBoundingBoxes(const string filename,
|
---|
| 451 | const ObjectContainer &objects) const;
|
---|
[850] | 452 | /** Load the bounding boxes into the container.
|
---|
| 453 | */
|
---|
[2117] | 454 | bool LoadBoundingBoxes(const string filename,
|
---|
| 455 | IndexedBoundingBoxContainer &boxes) const;
|
---|
[1002] | 456 | /** Returns true if pvs should be exported together with the view cells.
|
---|
| 457 | */
|
---|
| 458 | bool GetExportPvs() const;
|
---|
[1786] | 459 | /** Efficiently merges the view cells in the container.
|
---|
| 460 | */
|
---|
[1787] | 461 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 462 | const ViewCellContainer &viewCells) const;
|
---|
[2539] | 463 | /** Compresses the view cells.
|
---|
[2117] | 464 | */
|
---|
[1845] | 465 | virtual void CompressViewCells();
|
---|
[2539] | 466 | /** Returns view cell with the given id.
|
---|
| 467 | */
|
---|
[2017] | 468 | ViewCell *GetViewCellById(const int id);
|
---|
| 469 | /** Returns number of view cells.
|
---|
| 470 | */
|
---|
[1982] | 471 | int GetNumViewCells() const;
|
---|
| 472 |
|
---|
[2017] | 473 | bool GenerateRandomViewCells(ViewCellContainer &viewCells,
|
---|
| 474 | const int numViewCells);
|
---|
| 475 |
|
---|
| 476 | bool GenerateRandomViewCells(vector<ViewCellPoints *> &viewCells,
|
---|
| 477 | const int nViewCells,
|
---|
| 478 | const int nViewPoints);
|
---|
| 479 |
|
---|
| 480 |
|
---|
| 481 | bool GenerateViewPoints(ViewCell *viewCell,
|
---|
| 482 | const int numViewPoints,
|
---|
| 483 | SimpleRayContainer &viewPoints);
|
---|
| 484 |
|
---|
| 485 | bool ImportRandomViewCells(const string &filename,
|
---|
| 486 | vector<ViewCellPoints *> &viewCells);
|
---|
| 487 |
|
---|
[2048] | 488 | bool ImportRandomViewCells(const string &filename);
|
---|
[2017] | 489 |
|
---|
| 490 | bool ExportRandomViewCells(const string &filename,
|
---|
| 491 | const vector<ViewCellPoints *> &viewCells);
|
---|
| 492 |
|
---|
[2048] | 493 | bool ExportRandomViewCells(const string &filename);
|
---|
| 494 |
|
---|
[2017] | 495 | bool GenerateViewPoint(ViewCell *viewCell, SimpleRay &ray);
|
---|
| 496 |
|
---|
| 497 | bool IsValidViewSpace(ViewCell *vc);
|
---|
| 498 |
|
---|
[2048] | 499 |
|
---|
[2017] | 500 | //////////////
|
---|
[1582] | 501 | // static members
|
---|
| 502 |
|
---|
| 503 | /** Loads view cells from file. The view cells manager is created with
|
---|
| 504 | respect to the loaded view cells.
|
---|
[870] | 505 |
|
---|
[1582] | 506 | @param filename the filename of the view cells
|
---|
| 507 | @param objects the scene objects
|
---|
[2115] | 508 | @param finalizeViewCells if the view cells should be post processed, i.e.,
|
---|
[2048] | 509 | a mesh is created representing the geometry
|
---|
[1582] | 510 | @param bconverter a conversion routine working with the similarities of bounding
|
---|
[2048] | 511 | boxes: if there is a certain similarity of overlap between
|
---|
| 512 | bounding boxes, two tested candidate objects are considered
|
---|
| 513 | to be the same objects
|
---|
[1582] | 514 | @returns the view cells manager if loading was successful, false otherwise
|
---|
| 515 | */
|
---|
| 516 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
[2113] | 517 | ObjectContainer &pvsObjects,
|
---|
| 518 | ObjectContainer &preprocessorObjects,
|
---|
[1676] | 519 | bool finalizeViewCells = false,
|
---|
[1582] | 520 | BoundingBoxConverter *bconverter = NULL);
|
---|
[870] | 521 |
|
---|
[2542] | 522 | /** Convenience function assuming that there are no preprocessor objects.
|
---|
| 523 | */
|
---|
[2115] | 524 | static ViewCellsManager *LoadViewCells(const string &filename,
|
---|
| 525 | ObjectContainer &pvsObjects,
|
---|
| 526 | bool finalizeViewCells = false,
|
---|
| 527 | BoundingBoxConverter *bconverter = NULL);
|
---|
[904] | 528 |
|
---|
[2542] | 529 |
|
---|
[2113] | 530 | ///////////////////////
|
---|
[2542] | 531 | //-- visiblity filter options
|
---|
[1294] | 532 |
|
---|
[931] | 533 | // TODO: write own visibiltiy filter class
|
---|
[2048] | 534 | void ApplyFilter(KdTree *kdTree,
|
---|
| 535 | const float viewSpaceFilterSize,
|
---|
| 536 | const float spatialFilterSize);
|
---|
[904] | 537 |
|
---|
[2048] | 538 | // new adaptive version of the filter
|
---|
| 539 | PvsFilterStatistics ApplyFilter2(ViewCell *viewCell,
|
---|
| 540 | const bool useViewSpaceFilter,
|
---|
| 541 | const float filterSize,
|
---|
| 542 | ObjectPvs &pvs,
|
---|
| 543 | vector<AxisAlignedBox3> *filteredBoxes = NULL);
|
---|
[1715] | 544 |
|
---|
[931] | 545 | void ApplySpatialFilter(KdTree *kdTree,
|
---|
| 546 | const float spatialFilterSize,
|
---|
| 547 | ObjectPvs &pvs);
|
---|
[480] | 548 |
|
---|
[931] | 549 | void ApplyFilter(ViewCell *viewCell,
|
---|
| 550 | KdTree *kdTree,
|
---|
| 551 | const float viewSpaceFilterSize,
|
---|
| 552 | const float spatialFilterSize,
|
---|
| 553 | ObjectPvs &pvs);
|
---|
| 554 |
|
---|
| 555 | float GetFilterWidth();
|
---|
| 556 |
|
---|
| 557 | float GetAbsFilterWidth();
|
---|
[697] | 558 | /** Returns the bounding box of filter width.
|
---|
| 559 | */
|
---|
[2117] | 560 | AxisAlignedBox3 GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 561 | const float width) const;
|
---|
[609] | 562 |
|
---|
[2199] | 563 |
|
---|
| 564 |
|
---|
[1294] | 565 | //////////////////////////////////////////////////////////////////
|
---|
[979] | 566 |
|
---|
[2048] | 567 |
|
---|
[1155] | 568 | /** If true, the kd nodes are stored instead of the object pvs.
|
---|
| 569 | */
|
---|
| 570 | void SetStoreKdPvs(const bool storeKdPvs);
|
---|
| 571 |
|
---|
| 572 | /** Returns true if the kd nodes are stored instead of the object pvs.
|
---|
| 573 | **/
|
---|
| 574 | bool GetStoreKdPVs() const;
|
---|
| 575 |
|
---|
[1570] | 576 | /** Exports single view cells for visualization.
|
---|
| 577 | @param objects the scene objects
|
---|
| 578 | @param limit the maximal number of output view cells
|
---|
| 579 | @param sortViewCells if the view cells should be sorted by pvs size
|
---|
| 580 | @param exportPvs if the pvs should also be exported
|
---|
| 581 | @param exportRays if sample rays should be exported as well
|
---|
[1580] | 582 | @param maxRays maximum number of rays to export
|
---|
| 583 | @param prefix the prefix for the output file
|
---|
[1570] | 584 | @param visRays additional rays
|
---|
| 585 | */
|
---|
[1686] | 586 | virtual void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 587 | const int maxViewCells,
|
---|
| 588 | const bool sortViewCells,
|
---|
| 589 | const bool exportPvs,
|
---|
| 590 | const bool exportRays,
|
---|
| 591 | const int maxRays,
|
---|
[2394] | 592 | const string &prefix,
|
---|
[1686] | 593 | VssRayContainer *visRays = NULL) = NULL;
|
---|
[1570] | 594 |
|
---|
[1932] | 595 |
|
---|
[2048] | 596 | void ResetPvs();
|
---|
[1580] | 597 |
|
---|
[1932] | 598 | Preprocessor *GetPreprocessor() const {
|
---|
| 599 | return mPreprocessor;
|
---|
| 600 | }
|
---|
[1580] | 601 |
|
---|
[1932] | 602 | void SetPreprocessor(Preprocessor *p) {
|
---|
| 603 | mPreprocessor = p;
|
---|
| 604 | }
|
---|
[1608] | 605 |
|
---|
[2048] | 606 | vector<ViewCellPoints *> *GetViewCellPoints()
|
---|
| 607 | {
|
---|
| 608 | return &mViewCellPoints;
|
---|
| 609 | }
|
---|
| 610 |
|
---|
[1932] | 611 | void UpdatePvsForEvaluation();
|
---|
| 612 |
|
---|
[931] | 613 | protected:
|
---|
[1145] | 614 |
|
---|
[1932] | 615 | void ComputeViewCellContribution(ViewCell *viewCell,
|
---|
| 616 | VssRay &ray,
|
---|
| 617 | Intersectable *obj,
|
---|
| 618 | const Vector3 &pt,
|
---|
| 619 | const bool addRays);
|
---|
| 620 |
|
---|
[1787] | 621 | void MergeViewCellsRecursivly(ObjectPvs &pvs,
|
---|
| 622 | const ViewCellContainer &viewCells,
|
---|
| 623 | const int leftIdx,
|
---|
| 624 | const int rightIdx) const;
|
---|
[697] | 625 | /** Intersects box with the tree and returns the number of intersected boxes.
|
---|
[2539] | 626 | @returns number of view cells found
|
---|
[697] | 627 | */
|
---|
[710] | 628 | virtual int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 629 | ViewCellContainer &viewCells) const;
|
---|
[880] | 630 | /** Tests the visibility filter functionality.
|
---|
| 631 | */
|
---|
[697] | 632 | virtual void TestFilter(const ObjectContainer &objects) {};
|
---|
[931] | 633 | /** If the view cells tree was already constructed or not.
|
---|
[581] | 634 | */
|
---|
| 635 | bool ViewCellsTreeConstructed() const;
|
---|
[1294] | 636 | /** Requests preprocessor to cast samplesPerPass samples of a specific type.
|
---|
| 637 | */
|
---|
[574] | 638 | int CastPassSamples(const int samplesPerPass,
|
---|
[1768] | 639 | const vector<int> &strategies,
|
---|
[574] | 640 | VssRayContainer &vssRays) const;
|
---|
[2542] | 641 | /** cast samples for the purpose of evaluating the view cells solution
|
---|
| 642 | */
|
---|
[2199] | 643 | int CastEvaluationSamples(const int samplesPerPass,
|
---|
| 644 | VssRayContainer &passSamples);// const;
|
---|
[931] | 645 | /** Parse the options from the environment file.
|
---|
| 646 | */
|
---|
[482] | 647 | void ParseEnvironment();
|
---|
[508] | 648 | /** Creates unique view cell ids.
|
---|
| 649 | */
|
---|
| 650 | void CreateUniqueViewCellIds();
|
---|
[551] | 651 | /** Finalizes, i.e., creates mesh, volume, area etc. for the view cell.
|
---|
| 652 | */
|
---|
| 653 | virtual void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[480] | 654 | /** Recollects view cells and resets statistics.
|
---|
| 655 | */
|
---|
| 656 | void ResetViewCells();
|
---|
[1707] | 657 | /** Sets this view cell to active.
|
---|
| 658 | */
|
---|
| 659 | void SetViewCellActive(ViewCell *vc) const;
|
---|
[480] | 660 | /** Collects the view cells in the view cell container.
|
---|
| 661 | */
|
---|
| 662 | virtual void CollectViewCells() = 0;
|
---|
[2539] | 663 | /** Evaluates view cells statistics and stores it in mViewCellsStatistics.
|
---|
[479] | 664 | */
|
---|
| 665 | void EvaluateViewCellsStats();
|
---|
[2543] | 666 |
|
---|
[482] | 667 |
|
---|
[1416] | 668 | ///////////////////////
|
---|
[482] | 669 | //-- helper functions for view cell visualization
|
---|
| 670 |
|
---|
| 671 | /** Exports the view cell partition.
|
---|
| 672 | */
|
---|
[1686] | 673 | void ExportViewCellsForViz(Exporter *exporter,
|
---|
| 674 | const AxisAlignedBox3 *box,
|
---|
[1760] | 675 | const bool colorCode,
|
---|
[1932] | 676 | const AxisAlignedPlane *clipPlane) const;
|
---|
[482] | 677 | /** Sets exporter color.
|
---|
| 678 | */
|
---|
[1773] | 679 | virtual void ExportColor(Exporter *exporter,
|
---|
| 680 | ViewCell *vc,
|
---|
[2394] | 681 | const int colorCode) const;
|
---|
[1416] | 682 | /** Creates meshes from the view cells.
|
---|
| 683 | */
|
---|
| 684 | void CreateViewCellMeshes();
|
---|
[1932] | 685 | /** Creates clip plane for visualization.
|
---|
[1416] | 686 | */
|
---|
| 687 | void CreateClipPlane();
|
---|
[482] | 688 |
|
---|
[1416] | 689 | AxisAlignedPlane *GetClipPlane();
|
---|
[1932] | 690 |
|
---|
[1551] | 691 | void ExportMergedViewCells(const ObjectContainer &objects);
|
---|
| 692 |
|
---|
[2048] | 693 |
|
---|
[1416] | 694 | ///////////////////////
|
---|
| 695 |
|
---|
[1002] | 696 | /** Returns volume of the view space.
|
---|
| 697 | */
|
---|
[557] | 698 | virtual float GetViewSpaceVolume();
|
---|
[1416] | 699 | /** Prepares the view cells for sampling after loading them from disc.
|
---|
[503] | 700 | */
|
---|
[577] | 701 | virtual void PrepareLoadedViewCells() {};
|
---|
[704] | 702 | /** Constructs local view cell merge hierarchy.
|
---|
| 703 | */
|
---|
| 704 | ViewCell *ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
[2539] | 705 | const ViewCellContainer &viewCells);
|
---|
[713] | 706 | /** Constructs local view cell merge hierarchy based solely on similarity with the
|
---|
[2048] | 707 | current viewcell
|
---|
[713] | 708 | */
|
---|
| 709 | ViewCell *ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 710 | const ViewCellContainer &viewCells);
|
---|
[860] | 711 | /** Updates pvs of all view cells for statistical evaluation after some more sampling
|
---|
| 712 | */
|
---|
[1168] | 713 | void UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs);
|
---|
[2543] | 714 | /** Export statistics of the view cells tree.
|
---|
| 715 | */
|
---|
[1679] | 716 | virtual void ExportStats(const string &mergeStats);
|
---|
[2547] | 717 | /** Loads view cells in binary mode.
|
---|
| 718 | */
|
---|
| 719 | static ViewCellsManager *LoadViewCellsBinary(const string &filename,
|
---|
[2539] | 720 | ObjectContainer &pvsObjects,
|
---|
| 721 | bool finalizeViewCells,
|
---|
| 722 | BoundingBoxConverter *bconverter);
|
---|
[2543] | 723 | /** This helper function loads the bounding boxes for a binary solution.
|
---|
| 724 | */
|
---|
[2547] | 725 | static void LoadIndexedBoundingBoxesBinary(IN_STREAM &stream,
|
---|
| 726 | IndexedBoundingBoxContainer &iboxes);
|
---|
[2048] | 727 |
|
---|
[2539] | 728 |
|
---|
[752] | 729 |
|
---|
[2543] | 730 | ///////////
|
---|
| 731 | //-- members
|
---|
[2048] | 732 |
|
---|
[2199] | 733 | ofstream mStats;
|
---|
[1145] | 734 | Preprocessor *mPreprocessor;
|
---|
| 735 | /// if bounding boxes should be exported together with the view cells
|
---|
[840] | 736 | bool mExportBboxesForPvs;
|
---|
[1416] | 737 | /// the clip plane for visualization
|
---|
| 738 | AxisAlignedPlane mClipPlaneForViz;
|
---|
| 739 | /// if the visualization is using the clip plane
|
---|
[660] | 740 | bool mUseClipPlaneForViz;
|
---|
[480] | 741 | /// Renders the view cells.
|
---|
| 742 | Renderer *mRenderer;
|
---|
[440] | 743 | /// Loaded view cells
|
---|
[469] | 744 | ViewCellContainer mViewCells;
|
---|
[1416] | 745 | /// the view cell hierarchy (i.e., the logical description of view cells)
|
---|
[580] | 746 | ViewCellsTree *mViewCellsTree;
|
---|
[1414] | 747 |
|
---|
[1773] | 748 | std::vector<int> mStrategies;
|
---|
| 749 |
|
---|
[1416] | 750 | /** if the values in the view cell leaves and the interiors are up to date
|
---|
| 751 | this is meant for lazy storing of the pvs, where only a scalar indicating
|
---|
| 752 | pvs size is stored in interiors and not the pvs itself.
|
---|
| 753 | */
|
---|
[719] | 754 | bool mViewCellPvsIsUpdated;
|
---|
[1002] | 755 |
|
---|
[1416] | 756 | /// maximum number of samples for the view cell construction
|
---|
[440] | 757 | int mConstructionSamples;
|
---|
[574] | 758 | int mSamplesPerPass;
|
---|
| 759 | int mInitialSamples;
|
---|
[440] | 760 | int mPostProcessSamples;
|
---|
| 761 | int mVisualizationSamples;
|
---|
[441] | 762 |
|
---|
[2232] | 763 | int mEvaluationSamples;
|
---|
| 764 |
|
---|
[470] | 765 | float mTotalAreaValid;
|
---|
| 766 | float mTotalArea;
|
---|
[475] | 767 |
|
---|
[547] | 768 | int mMaxPvsSize;
|
---|
[562] | 769 | int mMinPvsSize;
|
---|
[547] | 770 | float mMaxPvsRatio;
|
---|
| 771 |
|
---|
[660] | 772 | int mSamplingType;
|
---|
[722] | 773 | int mEvaluationSamplingType;
|
---|
[600] | 774 | int mNumActiveViewCells;
|
---|
[586] | 775 | bool mCompressViewCells;
|
---|
| 776 |
|
---|
[2048] | 777 | vector<ViewCellPoints *> mViewCellPoints;
|
---|
| 778 |
|
---|
[1002] | 779 | /// holds the current view cell statistics
|
---|
[660] | 780 | ViewCellsStatistics mCurrentViewCellsStats;
|
---|
[2048] | 781 |
|
---|
[487] | 782 | /// the scene bounding box
|
---|
[542] | 783 | AxisAlignedBox3 mViewSpaceBox;
|
---|
[1001] | 784 |
|
---|
[508] | 785 | /// if view cells should be exported
|
---|
| 786 | bool mExportViewCells;
|
---|
[1002] | 787 | // if only valid view cells should be considered for processing
|
---|
[564] | 788 | bool mOnlyValidViewCells;
|
---|
[580] | 789 | /// if rays should be used to collect merge candidates
|
---|
| 790 | bool mUseRaysForMerge;
|
---|
[1002] | 791 | /// if there should be an additional merge step after the subdivision
|
---|
[592] | 792 | bool mMergeViewCells;
|
---|
[697] | 793 | /// the width of the box filter
|
---|
| 794 | float mFilterWidth;
|
---|
[1570] | 795 | /// Maximal size of the filter in terms of contributing view cells
|
---|
[697] | 796 | int mMaxFilterSize;
|
---|
[2538] | 797 | /// only for debugging: stores some rays used during view cell construction
|
---|
[1686] | 798 | VssRayContainer storedRays;
|
---|
[2538] | 799 | /// if kd node based pvs is used for preprocessing
|
---|
[1902] | 800 | bool mUseKdPvs;
|
---|
[2538] | 801 | /// types of distributions used for sampling
|
---|
[1903] | 802 | MixtureDistribution *mMixtureDistribution;
|
---|
| 803 |
|
---|
[2048] | 804 |
|
---|
[1545] | 805 | //////////////////
|
---|
[487] | 806 | //-- visualization options
|
---|
| 807 |
|
---|
[1002] | 808 | /// color code for view cells visualization
|
---|
[1570] | 809 | bool mShowVisualization;
|
---|
[487] | 810 | int mColorCode;
|
---|
| 811 | bool mExportGeometry;
|
---|
| 812 | bool mExportRays;
|
---|
[517] | 813 | bool mViewCellsFinished;
|
---|
[664] | 814 | bool mEvaluateViewCells;
|
---|
[844] | 815 |
|
---|
| 816 | /// if pvs should be exported with view cells
|
---|
| 817 | bool mExportPvs;
|
---|
[1155] | 818 |
|
---|
[1703] | 819 | /// if view cells geometry should be used from other sources
|
---|
[1545] | 820 | bool mUsePredefinedViewCells;
|
---|
[2538] | 821 | /// the weight for one triangle in the heuristics
|
---|
[2332] | 822 | float mTriangleWeight;
|
---|
[2538] | 823 | /// the weight for one object (= one entity issued with one draw call) in the heuristics
|
---|
[2332] | 824 | float mObjectWeight;
|
---|
| 825 |
|
---|
| 826 | vector<PerViewCellStat> mPerViewCellStat;
|
---|
| 827 | SamplesStatistics mSamplesStat;
|
---|
[440] | 828 | };
|
---|
| 829 |
|
---|
[441] | 830 |
|
---|
[1545] | 831 | /** Manages different higher order operations on the view cells.
|
---|
[440] | 832 | */
|
---|
| 833 | class BspViewCellsManager: public ViewCellsManager
|
---|
| 834 | {
|
---|
| 835 |
|
---|
| 836 | public:
|
---|
[485] | 837 | /** Constructor taking the bsp tree and the number of samples
|
---|
| 838 | used to construct the bsp tree.
|
---|
| 839 | */
|
---|
[1264] | 840 | BspViewCellsManager(ViewCellsTree *viewCellsTree, BspTree *tree);
|
---|
[440] | 841 |
|
---|
[477] | 842 | ~BspViewCellsManager();
|
---|
[1582] | 843 |
|
---|
[574] | 844 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 845 | const VssRayContainer &rays);
|
---|
[440] | 846 |
|
---|
| 847 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 848 | const VssRayContainer &rays);
|
---|
[440] | 849 |
|
---|
| 850 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 851 | const VssRayContainer &sampleRays);
|
---|
[440] | 852 |
|
---|
| 853 | int GetType() const;
|
---|
| 854 |
|
---|
| 855 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 856 |
|
---|
| 857 | bool ViewCellsConstructed() const;
|
---|
| 858 |
|
---|
[475] | 859 | //void PrintStatistics(ostream &s) const;
|
---|
[452] | 860 |
|
---|
[468] | 861 | int CastLineSegment(const Vector3 &origin,
|
---|
| 862 | const Vector3 &termination,
|
---|
| 863 | ViewCellContainer &viewcells);
|
---|
| 864 |
|
---|
[1294] | 865 | /** Returns the probability that the view point lies
|
---|
| 866 | in this view cells.
|
---|
| 867 | */
|
---|
[471] | 868 | float GetProbability(ViewCell *viewCell);
|
---|
[466] | 869 |
|
---|
[1294] | 870 | /** Get a viewcell containing the specified point.
|
---|
[879] | 871 | */
|
---|
| 872 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[492] | 873 |
|
---|
[1294] | 874 | /** Creates mesh for this view cell.
|
---|
| 875 | */
|
---|
[503] | 876 | void CreateMesh(ViewCell *vc);
|
---|
| 877 |
|
---|
[1416] | 878 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 879 | ViewCell *vc,
|
---|
| 880 | const AxisAlignedBox3 *box,
|
---|
| 881 | const AxisAlignedPlane *clipPlane = NULL
|
---|
| 882 | ) const;
|
---|
[580] | 883 |
|
---|
[587] | 884 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 885 | vector<MergeCandidate> &candidates);
|
---|
[547] | 886 |
|
---|
[587] | 887 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 888 |
|
---|
[1416] | 889 | bool ExportViewCells(const string filename,
|
---|
| 890 | const bool exportPvs,
|
---|
| 891 | const ObjectContainer &objects);
|
---|
[590] | 892 |
|
---|
[752] | 893 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 894 | */
|
---|
[650] | 895 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[610] | 896 |
|
---|
[1686] | 897 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 898 | const int maxViewCells,
|
---|
| 899 | const bool sortViewCells,
|
---|
| 900 | const bool exportPvs,
|
---|
| 901 | const bool exportRays,
|
---|
| 902 | const int maxRays,
|
---|
[2394] | 903 | const string &prefix,
|
---|
[1686] | 904 | VssRayContainer *visRays = NULL);
|
---|
[1545] | 905 |
|
---|
[1977] | 906 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 907 | const Vector3 &termination,
|
---|
| 908 | ViewCell *viewCell);
|
---|
| 909 |
|
---|
[440] | 910 | protected:
|
---|
| 911 |
|
---|
[480] | 912 | void CollectViewCells();
|
---|
[547] | 913 |
|
---|
[440] | 914 | /// the BSP tree.
|
---|
| 915 | BspTree *mBspTree;
|
---|
[475] | 916 | vector<BspRay *> mBspRays;
|
---|
[440] | 917 |
|
---|
| 918 | private:
|
---|
| 919 |
|
---|
[1545] | 920 | /** Constructs a spatial merge tree only 2 levels deep.
|
---|
| 921 | */
|
---|
| 922 | ViewCell *ConstructDummyMergeTree(BspNode *root);
|
---|
[440] | 923 | /** Exports visualization of the BSP splits.
|
---|
| 924 | */
|
---|
[477] | 925 | void ExportSplits(const ObjectContainer &objects);
|
---|
[1002] | 926 | /** test if subdivision is valid in terms of volume / area.
|
---|
| 927 | */
|
---|
[693] | 928 | void TestSubdivision();
|
---|
[440] | 929 | };
|
---|
| 930 |
|
---|
[1545] | 931 |
|
---|
[440] | 932 | /**
|
---|
| 933 | Manages different higher order operations on the KD type view cells.
|
---|
| 934 | */
|
---|
| 935 | class KdViewCellsManager: public ViewCellsManager
|
---|
| 936 | {
|
---|
| 937 |
|
---|
| 938 | public:
|
---|
| 939 |
|
---|
[1264] | 940 | KdViewCellsManager(ViewCellsTree *viewCellsTree, KdTree *tree);
|
---|
[440] | 941 |
|
---|
[574] | 942 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 943 | const VssRayContainer &rays);
|
---|
[440] | 944 |
|
---|
[478] | 945 | int CastLineSegment(const Vector3 &origin,
|
---|
| 946 | const Vector3 &termination,
|
---|
| 947 | ViewCellContainer &viewcells);
|
---|
[440] | 948 |
|
---|
| 949 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 950 | const VssRayContainer &rays);
|
---|
[440] | 951 |
|
---|
| 952 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 953 | const VssRayContainer &sampleRays);
|
---|
[440] | 954 |
|
---|
| 955 | int GetType() const;
|
---|
| 956 |
|
---|
| 957 | bool ViewCellsConstructed() const;
|
---|
| 958 |
|
---|
[580] | 959 | ViewCell *GenerateViewCell(Mesh *mesh) const;
|
---|
[440] | 960 |
|
---|
[452] | 961 | /** Prints out statistics of this approach.
|
---|
| 962 | */
|
---|
[503] | 963 | // virtual void PrintStatistics(ostream &s) const;
|
---|
[1416] | 964 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const
|
---|
| 965 | { return NULL; }
|
---|
[452] | 966 |
|
---|
[503] | 967 | float GetProbability(ViewCell *viewCell);
|
---|
[609] | 968 |
|
---|
[503] | 969 | void CreateMesh(ViewCell *vc);
|
---|
| 970 |
|
---|
[1686] | 971 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 972 | ViewCell *vc,
|
---|
| 973 | const AxisAlignedBox3 *box,
|
---|
| 974 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[547] | 975 |
|
---|
[1416] | 976 |
|
---|
[591] | 977 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 978 | vector<MergeCandidate> &candidates);
|
---|
[580] | 979 |
|
---|
[1686] | 980 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 981 | const int maxViewCells,
|
---|
| 982 | const bool sortViewCells,
|
---|
| 983 | const bool exportPvs,
|
---|
| 984 | const bool exportRays,
|
---|
| 985 | const int maxRays,
|
---|
[2394] | 986 | const string &prefix,
|
---|
[1686] | 987 | VssRayContainer *visRays = NULL);
|
---|
[752] | 988 |
|
---|
[1977] | 989 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 990 | const Vector3 &termination,
|
---|
| 991 | ViewCell *viewCell);
|
---|
| 992 |
|
---|
[440] | 993 | protected:
|
---|
| 994 |
|
---|
[580] | 995 | /** Collects view cells from a hierarchy.
|
---|
| 996 | */
|
---|
[480] | 997 | void CollectViewCells();
|
---|
[580] | 998 |
|
---|
[480] | 999 | KdNode *GetNodeForPvs(KdLeaf *leaf);
|
---|
[440] | 1000 |
|
---|
[1570] | 1001 | ////////////////////////////////////////
|
---|
[440] | 1002 |
|
---|
[480] | 1003 | /// the BSP tree.
|
---|
| 1004 | KdTree *mKdTree;
|
---|
[440] | 1005 |
|
---|
[480] | 1006 | /// depth of the KD tree nodes with represent the view cells
|
---|
| 1007 | int mKdPvsDepth;
|
---|
[938] | 1008 |
|
---|
| 1009 |
|
---|
[440] | 1010 | };
|
---|
| 1011 |
|
---|
[1570] | 1012 |
|
---|
| 1013 | /** Manages different higher order operations on the view cells.
|
---|
[442] | 1014 | */
|
---|
| 1015 | class VspBspViewCellsManager: public ViewCellsManager
|
---|
| 1016 | {
|
---|
| 1017 |
|
---|
| 1018 | public:
|
---|
| 1019 |
|
---|
[1264] | 1020 | VspBspViewCellsManager(ViewCellsTree *viewCellsTree, VspBspTree *tree);
|
---|
[475] | 1021 | ~VspBspViewCellsManager();
|
---|
[442] | 1022 |
|
---|
[574] | 1023 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
[1686] | 1024 | const VssRayContainer &rays);
|
---|
[442] | 1025 |
|
---|
| 1026 | int PostProcess(const ObjectContainer &objects,
|
---|
[466] | 1027 | const VssRayContainer &rays);
|
---|
[442] | 1028 |
|
---|
| 1029 | void Visualize(const ObjectContainer &objects,
|
---|
[466] | 1030 | const VssRayContainer &sampleRays);
|
---|
[442] | 1031 |
|
---|
| 1032 | int GetType() const;
|
---|
| 1033 |
|
---|
| 1034 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1035 |
|
---|
| 1036 | bool ViewCellsConstructed() const;
|
---|
[468] | 1037 |
|
---|
| 1038 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1039 | const Vector3 &termination,
|
---|
| 1040 | ViewCellContainer &viewcells);
|
---|
[452] | 1041 |
|
---|
[471] | 1042 | float GetProbability(ViewCell *viewCell);
|
---|
[479] | 1043 |
|
---|
[879] | 1044 | ViewCell *GetViewCell(const Vector3 &point, const bool active = false) const;
|
---|
[477] | 1045 |
|
---|
[487] | 1046 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1047 |
|
---|
[490] | 1048 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
[503] | 1049 |
|
---|
| 1050 | void CreateMesh(ViewCell *vc);
|
---|
| 1051 |
|
---|
[1686] | 1052 | bool ExportViewCells(const string filename,
|
---|
| 1053 | const bool exportPvs,
|
---|
| 1054 | const ObjectContainer &objects);
|
---|
[508] | 1055 |
|
---|
[532] | 1056 | int CastBeam(Beam &beam);
|
---|
[1416] | 1057 |
|
---|
[1686] | 1058 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1059 | ViewCell *vc,
|
---|
| 1060 | const AxisAlignedBox3 *box,
|
---|
| 1061 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[532] | 1062 |
|
---|
[547] | 1063 |
|
---|
[555] | 1064 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
[551] | 1065 |
|
---|
[1686] | 1066 | void CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 1067 | vector<MergeCandidate> &candidates);
|
---|
[580] | 1068 |
|
---|
[1686] | 1069 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1070 | const int maxViewCells,
|
---|
| 1071 | const bool sortViewCells,
|
---|
| 1072 | const bool exportPvs,
|
---|
| 1073 | const bool exportRays,
|
---|
| 1074 | const int maxRays,
|
---|
[2394] | 1075 | const string &prefix,
|
---|
[1686] | 1076 | VssRayContainer *visRays = NULL);
|
---|
[1570] | 1077 |
|
---|
[1920] | 1078 |
|
---|
[1977] | 1079 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1080 | const Vector3 &termination,
|
---|
| 1081 | ViewCell *viewCell);
|
---|
| 1082 |
|
---|
[442] | 1083 | protected:
|
---|
[475] | 1084 |
|
---|
[1686] | 1085 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1086 | ViewCellContainer &viewCells) const;
|
---|
[651] | 1087 |
|
---|
[1021] | 1088 | /** Merges view cells according to some criteria
|
---|
[442] | 1089 | */
|
---|
[508] | 1090 | void MergeViewCells(const VssRayContainer &rays,
|
---|
| 1091 | const ObjectContainer &objects);
|
---|
[503] | 1092 |
|
---|
[564] | 1093 | void RefineViewCells(const VssRayContainer &rays, const ObjectContainer &objects);
|
---|
[442] | 1094 |
|
---|
[480] | 1095 | void CollectViewCells();
|
---|
| 1096 |
|
---|
[482] | 1097 | /** Returns maximal depth difference of view cell
|
---|
| 1098 | leaves in tree.
|
---|
| 1099 | */
|
---|
| 1100 | int GetMaxTreeDiff(ViewCell *vc) const;
|
---|
| 1101 |
|
---|
[752] | 1102 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1103 | */
|
---|
[577] | 1104 | void PrepareLoadedViewCells();
|
---|
| 1105 |
|
---|
[752] | 1106 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1107 | */
|
---|
[650] | 1108 | ViewCell *ConstructSpatialMergeTree(BspNode *root);
|
---|
[649] | 1109 |
|
---|
[979] | 1110 | /// HACK for testing visibility filter functionality
|
---|
[697] | 1111 | void TestFilter(const ObjectContainer &objects);
|
---|
| 1112 |
|
---|
[979] | 1113 | /** Visualization of the pvs difference to exact visubility using
|
---|
| 1114 | from point queries.
|
---|
| 1115 | */
|
---|
| 1116 | void VisualizeWithFromPointQueries();
|
---|
[697] | 1117 |
|
---|
[991] | 1118 | /** Evaluate from point queries for the current scene.
|
---|
| 1119 | */
|
---|
| 1120 | void EvalFromPointQueries();
|
---|
[979] | 1121 |
|
---|
[1021] | 1122 | /** Exports visualization of the BSP splits.
|
---|
| 1123 | */
|
---|
| 1124 | void ExportSplits(const ObjectContainer &objects,
|
---|
| 1125 | const VssRayContainer &rays);
|
---|
[991] | 1126 |
|
---|
[1686] | 1127 |
|
---|
| 1128 | /////////////////////////
|
---|
| 1129 |
|
---|
[442] | 1130 | /// the view space partition BSP tree.
|
---|
| 1131 | VspBspTree *mVspBspTree;
|
---|
| 1132 |
|
---|
[591] | 1133 |
|
---|
[442] | 1134 | private:
|
---|
| 1135 |
|
---|
[1021] | 1136 | /** test if subdivision is valid in terms of volume / area.
|
---|
[442] | 1137 | */
|
---|
[1021] | 1138 | void TestSubdivision();
|
---|
| 1139 | };
|
---|
[442] | 1140 |
|
---|
[1021] | 1141 |
|
---|
[2353] | 1142 |
|
---|
| 1143 | /** Manages different higher order operations on the view cells.
|
---|
[1021] | 1144 | */
|
---|
| 1145 | class VspOspViewCellsManager: public ViewCellsManager
|
---|
| 1146 | {
|
---|
[1740] | 1147 | friend class ViewCellsParseHandlers;
|
---|
[2542] | 1148 | friend class ViewCellsManager;
|
---|
[1977] | 1149 |
|
---|
[1021] | 1150 | public:
|
---|
| 1151 |
|
---|
[2542] | 1152 | /** This version takes a view cells tree and a hierarchy
|
---|
| 1153 | as input.
|
---|
| 1154 | */
|
---|
[2113] | 1155 | VspOspViewCellsManager(ViewCellsTree *vcTree,
|
---|
| 1156 | const string &hierarchyType);
|
---|
[1278] | 1157 |
|
---|
[1021] | 1158 | ~VspOspViewCellsManager();
|
---|
| 1159 |
|
---|
| 1160 | int ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1161 | const VssRayContainer &rays);
|
---|
| 1162 |
|
---|
| 1163 | int PostProcess(const ObjectContainer &objects,
|
---|
| 1164 | const VssRayContainer &rays);
|
---|
| 1165 |
|
---|
[1686] | 1166 | void Visualize(const ObjectContainer &objects,
|
---|
[1021] | 1167 | const VssRayContainer &sampleRays);
|
---|
| 1168 |
|
---|
| 1169 | int GetType() const;
|
---|
| 1170 |
|
---|
| 1171 | ViewCell *GenerateViewCell(Mesh *mesh = NULL) const;
|
---|
| 1172 |
|
---|
[2539] | 1173 | virtual Intersectable *GetIntersectable(const VssRay &ray,
|
---|
| 1174 | const bool isTermination) const;
|
---|
[1743] | 1175 |
|
---|
[1021] | 1176 | bool ViewCellsConstructed() const;
|
---|
| 1177 |
|
---|
| 1178 | int CastLineSegment(const Vector3 &origin,
|
---|
| 1179 | const Vector3 &termination,
|
---|
| 1180 | ViewCellContainer &viewcells);
|
---|
| 1181 |
|
---|
[1977] | 1182 | bool LineSegmentIntersects(const Vector3 &origin,
|
---|
| 1183 | const Vector3 &termination,
|
---|
| 1184 | ViewCell *viewCell);
|
---|
| 1185 |
|
---|
[1021] | 1186 | float GetProbability(ViewCell *viewCell);
|
---|
| 1187 |
|
---|
[2113] | 1188 | ViewCell *GetViewCell(const Vector3 &point,
|
---|
| 1189 | const bool active = false) const;
|
---|
[1021] | 1190 |
|
---|
| 1191 | bool GetViewPoint(Vector3 &viewPoint) const;
|
---|
| 1192 |
|
---|
| 1193 | bool ViewPointValid(const Vector3 &viewPoint) const;
|
---|
| 1194 |
|
---|
| 1195 | void CreateMesh(ViewCell *vc);
|
---|
| 1196 |
|
---|
[1027] | 1197 | bool ExportViewCells(const string filename,
|
---|
| 1198 | const bool exportPvs,
|
---|
| 1199 | const ObjectContainer &objects);
|
---|
[1021] | 1200 |
|
---|
| 1201 | int CastBeam(Beam &beam);
|
---|
| 1202 |
|
---|
| 1203 | void Finalize(ViewCell *viewCell, const bool createMesh);
|
---|
| 1204 |
|
---|
[1666] | 1205 | void ExportSingleViewCells(const ObjectContainer &objects,
|
---|
| 1206 | const int maxViewCells,
|
---|
| 1207 | const bool sortViewCells,
|
---|
| 1208 | const bool exportPvs,
|
---|
| 1209 | const bool exportRays,
|
---|
| 1210 | const int maxRays,
|
---|
[2394] | 1211 | const string &prefix,
|
---|
[1666] | 1212 | VssRayContainer *visRays = NULL);
|
---|
[2539] | 1213 | /** See parent class.
|
---|
| 1214 | */
|
---|
[2124] | 1215 | virtual void FinalizeViewCells(const bool createMesh);
|
---|
| 1216 |
|
---|
[2543] | 1217 | bool ExportViewCellsBinary(const string filename,
|
---|
[2539] | 1218 | const bool exportPvs,
|
---|
| 1219 | const ObjectContainer &objects);
|
---|
| 1220 |
|
---|
[2332] | 1221 | #if TEST_PACKETS
|
---|
| 1222 |
|
---|
[2353] | 1223 | float ComputeSampleContributions(const VssRayContainer &rays,
|
---|
| 1224 | const bool addContributions,
|
---|
| 1225 | const bool storeViewCells,
|
---|
| 1226 | const bool useHitObjects = false);
|
---|
[2332] | 1227 | #endif
|
---|
| 1228 |
|
---|
[2539] | 1229 |
|
---|
[1021] | 1230 | protected:
|
---|
[1180] | 1231 |
|
---|
[2539] | 1232 | /** View cells manager taking a view cells tree and a hierarchy as input.
|
---|
| 1233 | */
|
---|
[1740] | 1234 | VspOspViewCellsManager(ViewCellsTree *vcTree, HierarchyManager *hm);
|
---|
| 1235 |
|
---|
[1709] | 1236 | virtual void EvalViewCellPartition();
|
---|
[1027] | 1237 | /** Exports view cell geometry.
|
---|
| 1238 | */
|
---|
[1666] | 1239 | void ExportViewCellGeometry(Exporter *exporter,
|
---|
| 1240 | ViewCell *vc,
|
---|
| 1241 | const AxisAlignedBox3 *box,
|
---|
| 1242 | const AxisAlignedPlane *clipPlane = NULL) const;
|
---|
[1027] | 1243 |
|
---|
[1666] | 1244 | int ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1245 | ViewCellContainer &viewCells) const;
|
---|
[1021] | 1246 |
|
---|
| 1247 | void CollectViewCells();
|
---|
| 1248 |
|
---|
[1845] | 1249 | virtual void CompressViewCells();
|
---|
[1021] | 1250 | /** Prepare view cells for use after loading them from disc.
|
---|
| 1251 | */
|
---|
| 1252 | void PrepareLoadedViewCells();
|
---|
| 1253 | /** Constructs merge hierarchy which corresponds to the spatial hierarchy.
|
---|
| 1254 | */
|
---|
| 1255 | ViewCell *ConstructSpatialMergeTree(VspNode *root);
|
---|
[1074] | 1256 | /** Exports visualization of the PVS.
|
---|
[442] | 1257 | */
|
---|
[1666] | 1258 | void ExportPvs(const ObjectContainer &objects, const VssRayContainer &rays);
|
---|
[1740] | 1259 | /** Returns a hierarchy manager of the given name.
|
---|
| 1260 | */
|
---|
| 1261 | static HierarchyManager *CreateHierarchyManager(const string &name);
|
---|
[1887] | 1262 | /** collect objects intersecting a given spatial box
|
---|
[1845] | 1263 | */
|
---|
| 1264 | virtual void CollectObjects(const AxisAlignedBox3 &box, ObjectContainer &objects);
|
---|
[2539] | 1265 | /** Update the cost of pvss for hierarchy objects.
|
---|
| 1266 | */
|
---|
| 1267 | float UpdateObjectCosts();
|
---|
[1737] | 1268 |
|
---|
[2539] | 1269 |
|
---|
| 1270 | ////////////////
|
---|
| 1271 |
|
---|
| 1272 | /** Fast view cell loader in binary mode.
|
---|
| 1273 | */
|
---|
[2547] | 1274 | friend ViewCellsManager *ViewCellsManager::
|
---|
| 1275 | LoadViewCellsBinary(const std::string &filename,
|
---|
| 1276 | ObjectContainer &pvsObjects,
|
---|
| 1277 | bool finalizeViewCells,
|
---|
| 1278 | BoundingBoxConverter *bconverter);
|
---|
[2539] | 1279 |
|
---|
[2547] | 1280 |
|
---|
[2539] | 1281 | /** Print statistics about the view cells compression.
|
---|
| 1282 | */
|
---|
[2530] | 1283 | static void PrintCompressionStats(HierarchyManager *hm, const int pvsEntries);
|
---|
[1887] | 1284 |
|
---|
| 1285 |
|
---|
[2530] | 1286 | ////////////////////
|
---|
| 1287 |
|
---|
[2547] | 1288 | /// if we the objects are compressed after evaluation
|
---|
| 1289 | /// this makes only sense for testing purpose
|
---|
[1887] | 1290 | bool mCompressObjects;
|
---|
[2547] | 1291 | /// hierarchy manager managing view space / object subdivision.
|
---|
[1027] | 1292 | HierarchyManager *mHierarchyManager;
|
---|
[442] | 1293 | };
|
---|
| 1294 |
|
---|
[575] | 1295 |
|
---|
[860] | 1296 | }
|
---|
| 1297 |
|
---|
[440] | 1298 | #endif
|
---|