QFrameAction Class

class Qt3DLogic ::QFrameAction

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

头：	#include <QFrameAction>
CMake:	find_package(Qt6 REQUIRED COMPONENTS 3dlogic) target_link_libraries(mytarget PRIVATE Qt6::3dlogic)
qmake:	QT += 3dlogic
实例化：	FrameAction
继承：	Qt3DCore::QComponent

所有成员列表，包括继承成员

公共函数

QFrameAction (Qt3DCore::QNode * parent = nullptr)

信号

void	triggered (float dt )

详细描述

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.

For example, the 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

`[explicit]` QFrameAction:: QFrameAction ( Qt3DCore::QNode * parent = nullptr)

Constructs a new 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.