QFrameAction Class

Provides a way to have a synchronous function executed each frame. 更多...

头：	#include <QFrameAction>
qmake:	QT += 3dlogic
Since:	Qt 5.5
实例化：	FrameAction
继承：	Qt3DCore::QComponent

公共函数

QFrameAction (Qt3DCore::QNode * parent = nullptr)

2 公共函数继承自 Qt3DCore::QComponent
13 公共函数继承自 Qt3DCore::QNode
31 公共函数继承自 QObject

信号

void	triggered (float dt )

3 信号继承自 Qt3DCore::QComponent
4 信号继承自 Qt3DCore::QNode
2 信号继承自 QObject

静态公共成员

const QMetaObject

staticMetaObject

9 静态公共成员继承自 QObject

额外继承成员

1 特性继承自 Qt3DCore::QComponent
3 特性继承自 Qt3DCore::QNode
1 特性继承自 QObject
1 公共槽继承自 Qt3DCore::QComponent
3 公共槽继承自 Qt3DCore::QNode
1 公共槽继承自 QObject
2 保护函数继承自 Qt3DCore::QNode
9 保护函数继承自 QObject

详细描述

Provides a way to have a synchronous function executed each frame.

The QFrameAction provides a way to perform tasks each frame in a synchronized way with the Qt3D backend. This is useful to implement some aspects of application logic and to prototype functionality that can later be folded into an additional Qt3D aspect.

例如， QFrameAction can be used to animate a property in sync with the Qt3D engine where a Qt Quick animation element is not perfectly synchronized and may lead to stutters in some cases.

To execute your own code each frame connect to the QFrameAction::triggered 信号。

成员函数文档编制

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

构造新的 QFrameAction instance with parent parent .

`[signal]` void QFrameAction:: triggered ( float dt )

This signal is emitted each frame with dt being the time (in seconds) since the last triggering.

内容