内容

• 公共类型
• 特性
• 公共函数
• 公共槽
• 信号
• 详细描述

QClearBuffers Class

class Qt3DRender ::QClearBuffers

Class to clear buffers. 更多...

头：	#include <QClearBuffers>
qmake:	QT += 3drender
Since:	Qt 5.7
实例化：	ClearBuffers
继承：	Qt3DRender::QFrameGraphNode

该类在 Qt 5.7 引入。

• 所有成员列表，包括继承成员

公共类型

enum	BufferType { None, ColorBuffer, DepthBuffer, StencilBuffer, DepthStencilBuffer, …, AllBuffers }
flags	BufferTypeFlags

特性

buffers : BufferType clearColor : QColor clearDepthValue : float

clearStencilValue : int colorBuffer : Qt3DRender::QRenderTargetOutput*

公共函数

	QClearBuffers (Qt3DCore::QNode * parent = nullptr)
Qt3DRender::QClearBuffers::BufferType	buffers () const
QColor	clearColor () const
float	clearDepthValue () const
int	clearStencilValue () const
Qt3DRender::QRenderTargetOutput *	colorBuffer () const

公共槽

void	setBuffers (Qt3DRender::QClearBuffers::BufferType buffers )
void	setClearColor (const QColor & color )
void	setClearDepthValue (float clearDepthValue )
void	setClearStencilValue (int clearStencilValue )
void	setColorBuffer (Qt3DRender::QRenderTargetOutput * buffer )

信号

void	buffersChanged (Qt3DRender::QClearBuffers::BufferType buffers )
void	clearColorChanged (const QColor & color )
void	clearDepthValueChanged (float clearDepthValue )
void	clearStencilValueChanged (int clearStencilValue )
void	colorBufferChanged (Qt3DRender::QRenderTargetOutput * buffer )

详细描述

A Qt3DRender::QClearBuffers FrameGraph node enables clearing of the specific render target buffers with specific values.

成员类型文档编制

enum QClearBuffers:: BufferType
flags QClearBuffers:: BufferTypeFlags

This enum type describes types of buffer to be cleared.

常量	值	描述
Qt3DRender::QClearBuffers::None	0	No buffers will be cleared
Qt3DRender::QClearBuffers::ColorBuffer	(1 << 0)	Clear color buffers
Qt3DRender::QClearBuffers::DepthBuffer	(1 << 1)	Clear depth buffer
Qt3DRender::QClearBuffers::StencilBuffer	(1 << 2)	Clear stencil buffer
Qt3DRender::QClearBuffers::DepthStencilBuffer	DepthBuffer | StencilBuffer	Clear depth and stencil buffers
Qt3DRender::QClearBuffers::ColorDepthBuffer	ColorBuffer | DepthBuffer	Clear color and depth buffers
Qt3DRender::QClearBuffers::ColorDepthStencilBuffer	ColorBuffer | DepthStencilBuffer	Clear color, depth and stencil buffers
Qt3DRender::QClearBuffers::AllBuffers	0xFFFFFFFF	Clear all buffers

The BufferTypeFlags type is a typedef for QFlags <BufferType>. It stores an OR combination of BufferType values.

特性文档编制

buffers : BufferType

Specifies the buffer type to be used.

访问函数：

Qt3DRender::QClearBuffers::BufferType	buffers () const
void	setBuffers (Qt3DRender::QClearBuffers::BufferType buffers )

通知程序信号：

void	buffersChanged (Qt3DRender::QClearBuffers::BufferType buffers )

clearColor : QColor

Specifies the clear color to be used.

访问函数：

QColor	clearColor () const
void	setClearColor (const QColor & color )

通知程序信号：

void	clearColorChanged (const QColor & color )

clearDepthValue : float

Specifies the clear depth value to be used.

访问函数：

float	clearDepthValue () const
void	setClearDepthValue (float clearDepthValue )

通知程序信号：

void	clearDepthValueChanged (float clearDepthValue )

clearStencilValue : int

Specifies the stencil value to be used.

访问函数：

int	clearStencilValue () const
void	setClearStencilValue (int clearStencilValue )

通知程序信号：

void	clearStencilValueChanged (int clearStencilValue )

colorBuffer : Qt3DRender::QRenderTargetOutput *

Specifies a specific color buffer to clear. If set to NULL (default), and ColorBuffer flag is set, all color buffers will be cleared.

访问函数：

Qt3DRender::QRenderTargetOutput *	colorBuffer () const
void	setColorBuffer (Qt3DRender::QRenderTargetOutput * buffer )

通知程序信号：

void	colorBufferChanged (Qt3DRender::QRenderTargetOutput * buffer )

成员函数文档编制

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

The constructor creates an instance with the specified parent .