source: trunk/VUT/Ogre/include/OgrePlatformQueryManager.h @ 133

Revision 133, 2.8 KB checked in by mattausch, 19 years ago (diff)

fixed some bugs

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