[162] | 1 | #ifndef __INTERSECTABLE_H
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| 2 | #define __INTERSECTABLE_H
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| 3 |
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[2198] | 4 |
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[176] | 5 | #include "AxisAlignedBox3.h"
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[1867] | 6 | #include "Mailable.h"
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[162] | 7 |
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[2199] | 8 | #define STORE_VIEWCELLS_WITH_BVH 1
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[2198] | 9 |
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[860] | 10 | namespace GtpVisibilityPreprocessor {
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| 11 |
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[497] | 12 | struct VssRayContainer;
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[1072] | 13 | class KdLeaf;
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[1233] | 14 | class BvhLeaf;
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[1680] | 15 | class BvhNode;
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[1281] | 16 | class Intersectable;
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[2116] | 17 | class VssRay;
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[1281] | 18 | struct Face;
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[1233] | 19 |
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[1344] | 20 |
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[2066] | 21 | struct FaceParentInfo
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| 22 | {
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[2575] | 23 | /// intersectable
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| 24 | Intersectable *mObject;
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| 25 | /// face index
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| 26 | int mFaceIndex;
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| 27 |
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| 28 | FaceParentInfo(Intersectable *obj, const int fi):
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| 29 | mObject(obj), mFaceIndex(fi)
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| 30 | {}
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[1281] | 31 | };
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| 32 |
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[1344] | 33 |
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[2066] | 34 | class Intersectable
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| 35 | {
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[176] | 36 | public:
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[1579] | 37 |
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[2543] | 38 | ///////////////////////
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[1077] | 39 |
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[2543] | 40 | enum {MESH_INSTANCE,
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| 41 | TRANSFORMED_MESH_INSTANCE,
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| 42 | SPHERE,
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| 43 | VIEW_CELL,
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| 44 | OGRE_MESH_INSTANCE,
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| 45 | KD_INTERSECTABLE,
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| 46 | BVH_INTERSECTABLE,
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| 47 | TRIANGLE_INTERSECTABLE,
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| 48 | DUMMY_INTERSECTABLE,
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| 49 | ENGINE_INTERSECTABLE,
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| 50 | CONTAINER_INTERSECTABLE
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| 51 | };
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[1570] | 52 |
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[2543] | 53 | Intersectable();
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[245] | 54 |
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[2543] | 55 | virtual ~Intersectable();
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[1615] | 56 |
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[2543] | 57 | inline void SetId(const int id) { mId = id; }
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| 58 | inline int GetId() { return mId; }
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[382] | 59 |
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[2543] | 60 | /////////////
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| 61 | // Mailing stuff
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[1999] | 62 |
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[2543] | 63 | static void NewMail(const int reserve = 1)
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| 64 | {
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| 65 | sMailId += sReservedMailboxes;
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| 66 | sReservedMailboxes = reserve;
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| 67 | }
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[1999] | 68 |
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[2543] | 69 | void Mail() { mMailbox = sMailId; }
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| 70 | bool Mailed() const { return mMailbox == sMailId; }
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[2066] | 71 |
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[2543] | 72 | void Mail(const int mailbox) { mMailbox = sMailId + mailbox; }
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| 73 | bool Mailed(const int mailbox) const { return mMailbox == sMailId + mailbox; }
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[1763] | 74 |
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[2543] | 75 | int IncMail() { return ++ mMailbox - sMailId; }
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[1166] | 76 |
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[2543] | 77 | // last mail id -> warning not thread safe!
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| 78 | // both mailId and mailbox should be unique for each thread!!!
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| 79 | static int sMailId;
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| 80 | static int sReservedMailboxes;
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[1990] | 81 |
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[2543] | 82 | /// Mailbox used for traversals
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| 83 | int mMailbox;
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[1166] | 84 |
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| 85 |
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[2543] | 86 | ////////////////
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| 87 | // virtual interface
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[1166] | 88 |
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[2543] | 89 | virtual AxisAlignedBox3 GetBox() const = 0;
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| 90 | virtual int CastRay(Ray &ray) = 0;
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[2575] | 91 | virtual int CastSimpleRay(const SimpleRay &ray) = 0;
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| 92 | virtual int CastSimpleRay(const SimpleRay &ray, int indexRay) = 0;
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[1344] | 93 |
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[2543] | 94 | virtual bool IsConvex() const = 0;
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| 95 | virtual bool IsWatertight() const = 0;
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| 96 | virtual float IntersectionComplexity() = 0;
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[1687] | 97 |
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[2543] | 98 | virtual int NumberOfFaces() const = 0;
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| 99 | virtual int Type() const = 0;
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[1687] | 100 |
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[2543] | 101 | virtual int GetRandomSurfacePoint(Vector3 &point, Vector3 &normal) = 0;
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[1696] | 102 |
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[2543] | 103 | virtual int GetRandomEdgePoint(Vector3 &point,
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| 104 | Vector3 &normal) = 0;
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[1696] | 105 |
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[2543] | 106 | virtual int GetRandomVisibleSurfacePoint(Vector3 &point,
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| 107 | Vector3 &normal,
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| 108 | const Vector3 &viewpoint,
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| 109 | const int maxTries) = 0;
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[2066] | 110 |
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[2543] | 111 | // virtual int GetRandomPoint(Vector3 &point,
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| 112 | // vector3 &normal) = 0;
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[2198] | 113 |
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[2543] | 114 | virtual std::ostream &Describe(std::ostream &s) = 0;
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| 115 |
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| 116 | //////////////////////////////////////
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| 117 |
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| 118 |
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| 119 | virtual int GenerateSilhouetteRays(const int nrays,
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| 120 | const AxisAlignedBox3 &originBox,
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| 121 | const AxisAlignedBox3 &directionBox,
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| 122 | VssRayContainer &rays);
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| 123 |
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| 124 | virtual int GetRandomSurfacePoint(const float u,
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| 125 | const float v,
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| 126 | Vector3 &point,
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| 127 | Vector3 &normal);
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| 128 |
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| 129 | virtual float GetArea() const;
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| 130 |
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| 131 | static bool GreaterCounter(const Intersectable *a,
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| 132 | const Intersectable *b);
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| 133 |
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| 134 | /** Returns the name of the type of this intersectable
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| 135 | */
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| 136 | static std::string GetTypeName(Intersectable *obj);
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| 137 | /** Returns normal from the face with the specified index.
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| 138 | PROBLEM: Does not fit to all intersectable types (e.g., spheres)
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| 139 | */
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| 140 | virtual Vector3 GetNormal(const int idx) const;
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| 141 | /** Returns rays stored with this intersectable.
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| 142 | */
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| 143 | VssRayContainer *GetOrCreateRays();
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| 144 |
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| 145 | /** Deletes the rays associated with this intersectable.
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| 146 | */
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| 147 | void DelRayRefs();
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| 148 |
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| 149 | /// hack
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| 150 | int mRenderedFrame;
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| 151 |
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| 152 | ///////////
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| 153 |
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| 154 | /// unique object Id
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| 155 | int mId;
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| 156 | /// universal counter
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| 157 | int mCounter;
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| 158 | /// pointer to the containing bvh leaf
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| 159 | BvhLeaf *mBvhLeaf;
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| 160 |
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[1696] | 161 | protected:
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[2543] | 162 |
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[2066] | 163 | /// some rays piercing this intersectable
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| 164 | VssRayContainer *mVssRays;
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[2198] | 165 |
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[2543] | 166 |
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[2198] | 167 | #if STORE_VIEWCELLS_WITH_BVH
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| 168 | public:
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[2543] | 169 | /** Returns rays stored with this intersectable.
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| 170 | */
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| 171 | ViewCellContainer *GetOrCreateViewCells();
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[2198] | 172 |
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[2543] | 173 | void DelViewCells();
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[2198] | 174 |
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| 175 | protected:
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[2543] | 176 | ViewCellContainer *mViewCells;
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[2198] | 177 | #endif
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[162] | 178 | };
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| 179 |
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[1135] | 180 |
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[860] | 181 | }
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[162] | 182 |
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| 183 | #endif
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