QLayer Class

class Qt3DRender ::QLayer

The QLayer class provides a way of filtering which entities will be rendered. 更多...

头：	#include <QLayer>
qmake:	QT += 3drender
Since:	Qt 5.5
实例化：	层
继承：	Qt3DCore::QComponent

该类在 Qt 5.5 引入。

所有成员列表，包括继承成员

特性

recursive : bool

公共函数

	QLayer (Qt3DCore::QNode * parent = nullptr)
bool	recursive () const
void	setRecursive (bool recursive )

信号

void	recursiveChanged ()

详细描述

Qt3DRender::QLayer works in conjunction with the Qt3DRender::QLayerFilter in the FrameGraph.

A QLayer can be applied to a subtree of entities by setting the recursive property to true.

 #include <Qt3DCore/QEntity>
 #include <Qt3DRender/QGeometryRenderer>
 #include <Qt3DRender/QLayer>
 #include <Qt3DRender/QLayerFilter>
 #include <Qt3DRender/QViewport>
// Scene
Qt3DCore::QEntity *rootEntity = new Qt3DCore::Qt3DCore::QEntity;
Qt3DCore::QEntity *renderableEntity = new Qt3DCore::Qt3DCore::QEntity(rootEntity);
Qt3DRender::QGeometryRenderer *geometryRenderer = new Qt3DCore::QGeometryRenderer(renderableEntity);
Qt3DRender::QLayer *layer1 = new Qt3DCore::QLayer(renderableEntity);
layer1->setRecursive(true);
renderableEntity->addComponent(geometryRenderer);
renderableEntity->addComponent(layer1);
...
// FrameGraph
Qt3DRender::QViewport *viewport = new Qt3DRender::QViewport;
Qt3DRender::QLayerFilter *layerFilter = new Qt3DRender::QLayerFilter(viewport);
layerFilter->addLayer(layer1);
...

另请参阅 Qt3DRender::QLayerFilter .

特性文档编制

recursive : bool

Specifies if the layer is also applied to the entity subtree.

访问函数：

bool	recursive () const
void	setRecursive (bool recursive )

通知程序信号：

void	recursiveChanged ()

成员函数文档编制

QLayer:: QLayer ( Qt3DCore::QNode * parent = nullptr)

Constructs a new QLayer with the specified parent .