1 | #ifndef _OcclusionQueriesQueryManager_H__ |
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2 | #define _OcclusionQueriesQueryManager_H__ |
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3 | |
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4 | #include "OgrePlatformQueryManager.h" |
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5 | |
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6 | namespace Ogre {
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7 |
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8 | /**
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9 | Class which implements a query manager for Ogre scene queries using occlusion queries.
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10 | */
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11 | class __declspec(dllexport) OcclusionQueriesQueryManager: public PlatformQueryManager
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12 | {
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13 | public:
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14 | /** Constructor taking a hierarchy interface as an argument. This allows to operate
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15 | on different hierarchy types, while reusing the implementation of the query methods.
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16 | */
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17 | OcclusionQueriesQueryManager(PlatformHierarchyInterface *hierarchyInterface, Viewport *vp, |
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18 | int queryModes, int itemBufferMode);
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19 |
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20 | void ComputeCameraVisibility(const Camera &camera,
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21 | GtpVisibility::NodeInfoContainer *visibleNodes,
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22 | GtpVisibility::MeshInfoContainer *visibleGeometry,
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23 | GtpVisibility::PatchInfoContainer *visiblePatches,
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24 | bool relativeVisibility = false);
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25 |
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26 | /**
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27 | Uses the specified point to execute the visibility query in all directions.
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28 | @sa ComputeCameraVisibility()
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29 | */
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30 | void ComputeFromPointVisibility(const Vector3 &point,
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31 | GtpVisibility::NodeInfoContainer *visibleNodes,
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32 | GtpVisibility::MeshInfoContainer *visibleGeometry,
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33 | GtpVisibility::PatchInfoContainer *visiblePatches,
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34 | bool relativeVisibility = false);
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35 |
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36 |
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37 | protected:
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38 |
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39 | void CollectGeometryVisibility(GtpVisibility::QueryList::iterator &visQueryIt, |
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40 | GtpVisibility::QueryList::iterator &projQueryIt, |
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41 | GtpVisibility::GeometryVector *geometryList, |
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42 | GtpVisibility::MeshInfoContainer *visibleGeometry,
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43 | bool relativeVisibility);
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44 |
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45 | void CollectNodeVisibility(GtpVisibility::QueryList::iterator &visQueryIt, |
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46 | GtpVisibility::QueryList::iterator &projQueryIt, |
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47 | GtpVisibility::NodeVector *nodeList, |
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48 | GtpVisibility::NodeInfoContainer *visibleNodes, |
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49 | bool relativeVisibility); |
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50 | |
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51 | void CollectRelativeGeometryVisibilityForItemBuffer(GtpVisibility::QueryList::iterator &projQueryIt,
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52 | GtpVisibility::GeometryVector *geometryList,
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53 | GtpVisibility::MeshInfoContainer *visibleGeometry);
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54 |
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55 | void CollectRelativePatchVisibilityForItemBuffer( |
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56 | GtpVisibility::QueryList::iterator &projQueryIt,
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57 | GtpVisibility::PatchVector *patchList,
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58 | GtpVisibility::PatchInfoContainer *visiblePatches);
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59 |
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60 | void CollectPatchVisibility(GtpVisibility::QueryList::iterator &visQueryIt, |
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61 | GtpVisibility::QueryList::iterator &projQueryIt, |
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62 | GtpVisibility::PatchVector *patchList, |
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63 | GtpVisibility::PatchInfoContainer *visiblePatches, |
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64 | bool relativeVisibility);
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65 |
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66 | void RemoveDuplicateNodes(GtpVisibility::NodeInfoContainer *visibleNodes);
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67 | void RemoveDuplicateGeometry(GtpVisibility::MeshInfoContainer *visibleMesh);
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68 | void RemoveDuplicatePatches(GtpVisibility::PatchInfoContainer *visiblePatches);
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69 |
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70 | /** Returns the patches of the geometry of a given node.
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71 | @param node the node containing the patches
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72 | @param patchList the patches are returned in this list
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73 | */
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74 | virtual void GetNodePatchList(GtpVisibility::HierarchyNode *node,
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75 | GtpVisibility::PatchVector *patchList);
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76 |
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77 | int mItemBufferMode;
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78 | };
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79 |
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80 | } // namespace Ogre
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81 |
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82 | #endif // OcclusionQueriesQueryManager
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