[133] | 1 | #ifndef _PlatformQueryManager_H__ |
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| 2 | #define _PlatformQueryManager_H__ |
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| 3 | |
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| 4 | #include "VisibilityInfo.h" |
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| 5 | #include "QueryManager.h" |
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| 6 | #include "OgrePlatformHierarchyInterface.h" |
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| 7 | |
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| 8 | namespace Ogre {
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| 9 |
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| 10 | /**
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| 11 | Class which implements the QueryManager for Ogre scene queries.
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| 12 | */
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| 13 | class __declspec(dllexport) PlatformQueryManager: public GtpVisibility::QueryManager
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| 14 | {
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| 15 | public:
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| 16 | /** Constructor taking a hierarchy interface as an argument. This allows to operate
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| 17 | onm different hierarchy types, while reusing the implementation of the query methods.
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| 18 | */
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| 19 | PlatformQueryManager(PlatformHierarchyInterface *hierarchyInterface, Viewport *vp);
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| 20 |
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| 21 | /**
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| 22 | Computes restricted visibility from point by using an explicit camera to execute
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| 23 | the visibility query.
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| 24 | @param camera The camera to be used
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| 25 |
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| 26 | @param visibleNodes Pointer to the container where visible nodes should be added.
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| 27 | This set is formed of visible leafs or fully visible interior nodes.
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| 28 | If NULL no visible nodes are not evaluated.
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| 29 |
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| 30 | @param visibleGeometry Pointer to the container where visible meshes should be added.
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| 31 | If NULL no visible meshes are not evaluated.
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| 32 |
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[143] | 33 | @param projectedPixels If true the visibility member for
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[133] | 34 | NodeInfo and MeshInfo represent relative visibility; i.e. the number of visible
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| 35 | pixels divided by the the number of projected pixels.
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| 36 |
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| 37 | @return true if the corresponding PVS exists.
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| 38 | */
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| 39 | virtual void
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| 40 | ComputeCameraVisibility(const Camera &camera,
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| 41 | InfoContainer<GtpVisibility::NodeInfo> *visibleNodes,
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| 42 | InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
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[144] | 43 | bool relativeVisibility = false
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[133] | 44 | );
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| 45 |
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| 46 | /**
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| 47 | Uses the specified point to execute the visibility query in all directions.
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| 48 | @sa ComputeCameraVisibility()
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| 49 | */
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| 50 | virtual void
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| 51 | ComputeFromPointVisibility(const Vector3 &point,
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| 52 | InfoContainer<GtpVisibility::NodeInfo> *visibleNodes,
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| 53 | InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
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[144] | 54 | bool relativeVisibility = false
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[133] | 55 | );
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| 56 |
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| 57 | /**
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| 58 | Ray shooting interface: finds an intersection with objects in the scene.
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| 59 |
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| 60 | @param ray The given input ray (assuming the ray direction is normalized)
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| 61 |
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| 62 | @param visibleMeshes List of meshes intersecting the ray
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| 63 |
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| 64 | @param isGlobalLine If false only first intersection with opaque object is returned.
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| 65 | Otherwise all intersections of the ray with the scene are found.
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| 66 |
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| 67 | @return true if there is any intersection.
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| 68 | */
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| 69 | virtual bool
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| 70 | ShootRay(const Ray &ray,
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| 71 | std::vector<Mesh *> *visibleMeshes,
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| 72 | bool isGlobalLine = false
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| 73 | );
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| 74 |
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[144] | 75 | /** Sets a viewport for rendering.
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[133] | 76 | */
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| 77 | void SetViewport(Viewport *vp);
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| 78 |
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| 79 | protected:
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| 80 | Viewport *mViewport;
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| 81 | };
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| 82 |
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| 83 | } // namespace Ogre
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| 84 |
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| 85 | #endif // PlatformQueryManager
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