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| 3 | ** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB). | 
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| 38 | ****************************************************************************/ | 
| 39 |  | 
| 40 | #include "qfrustumculling.h" | 
| 41 |  | 
| 42 | QT_BEGIN_NAMESPACE | 
| 43 |  | 
| 44 | namespace Qt3DRender { | 
| 45 | /*! | 
| 46 |     \class Qt3DRender::QFrustumCulling | 
| 47 |     \inmodule Qt3DRender | 
| 48 |     \since 5.7 | 
| 49 |     \ingroup framegraph | 
| 50 |     \brief Enable frustum culling for the FrameGraph. | 
| 51 |  | 
| 52 |     A QFrustumCulling class enables frustum culling of the drawable entities based on | 
| 53 |     the camera view and QGeometry bounds of the entities. If QFrustumCulling is present in | 
| 54 |     the FrameGraph, only the entities whose QGeometry bounds intersect with the camera | 
| 55 |     frustum, i.e. the view of the camera, are drawn. If QFrustumCulling is not present, | 
| 56 |     all drawable entities will be drawn. The camera is selected by a QCameraSelector | 
| 57 |     frame graph node in the current hierarchy. Frustum culling can save a lot of GPU | 
| 58 |     processing time when the rendered scene is complex. | 
| 59 |  | 
| 60 |     \sa QCameraSelector | 
| 61 |  */ | 
| 62 |  | 
| 63 | /*! | 
| 64 |     \qmltype FrustumCulling | 
| 65 |     \inqmlmodule Qt3D.Render | 
| 66 |     \instantiates Qt3DRender::QFrustumCulling | 
| 67 |     \inherits FrameGraphNode | 
| 68 |     \since 5.7 | 
| 69 |     \brief Enable frustum culling for the FrameGraph. | 
| 70 |  | 
| 71 |     A FrustumCulling type enables frustum culling of the drawable entities based on | 
| 72 |     the camera view and Geometry bounds of the entities. If FrustumCulling is present in | 
| 73 |     the FrameGraph, only the entities whose Geometry bounds intersect with the camera | 
| 74 |     frustum, i.e. the view of the camera, are drawn. If FrustumCulling is not present, | 
| 75 |     all drawable entities will be drawn. The camera is selected by a CameraSelector | 
| 76 |     frame graph node in the current hierarchy. Frustum culling can save a lot of GPU | 
| 77 |     processing time when the rendered scene is complex. | 
| 78 |  | 
| 79 |     \sa CameraSelector | 
| 80 | */ | 
| 81 |  | 
| 82 | /*! | 
| 83 |     The constructor creates an instance with the specified \a parent. | 
| 84 |  */ | 
| 85 | QFrustumCulling::QFrustumCulling(Qt3DCore::QNode *parent) | 
| 86 |     : QFrameGraphNode(parent) | 
| 87 | { | 
| 88 | } | 
| 89 |  | 
| 90 | /*! \internal */ | 
| 91 | QFrustumCulling::~QFrustumCulling() | 
| 92 | { | 
| 93 | } | 
| 94 |  | 
| 95 | } // Qt3DRender | 
| 96 |  | 
| 97 | QT_END_NAMESPACE | 
| 98 |  | 
| 99 |  |