QClearBuffers Class

(Qt3DRender::QClearBuffers)

Class to clear buffers. More...

Header: #include <QClearBuffers>
qmake: QT += 3drender
Since: Qt 5.7
Instantiated By: ClearBuffers
Inherits: Qt3DRender::QFrameGraphNode

Public Types

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

Properties

Public Functions

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

Public Slots

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

Signals

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

Static Public Members

const QMetaObject staticMetaObject

Additional Inherited Members

Detailed Description

Class to clear buffers.

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

Member Type Documentation

enum QClearBuffers::BufferType
flags QClearBuffers::BufferTypeFlags

This enum type describes types of buffer to be cleared.

ConstantValueDescription
Qt3DRender::QClearBuffers::None0No 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::DepthStencilBufferDepthBuffer | StencilBufferClear depth and stencil buffers
Qt3DRender::QClearBuffers::ColorDepthBufferColorBuffer | DepthBufferClear color and depth buffers
Qt3DRender::QClearBuffers::ColorDepthStencilBufferColorBuffer | DepthStencilBufferClear color, depth and stencil buffers
Qt3DRender::QClearBuffers::AllBuffers0xFFFFFFFFClear all buffers

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

Property Documentation

buffers : BufferType

Specifies the buffer type to be used.

Access functions:

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

Notifier signal:

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

clearColor : QColor

Specifies the clear color to be used.

Access functions:

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

Notifier signal:

void clearColorChanged(const QColor &color)

clearDepthValue : float

Specifies the clear depth value to be used.

Access functions:

float clearDepthValue() const
void setClearDepthValue(float clearDepthValue)

Notifier signal:

void clearDepthValueChanged(float clearDepthValue)

clearStencilValue : int

Specifies the stencil value to be used.

Access functions:

int clearStencilValue() const
void setClearStencilValue(int clearStencilValue)

Notifier signal:

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.

Access functions:

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

Notifier signal:

void colorBufferChanged(Qt3DRender::QRenderTargetOutput *buffer)

Member Function Documentation

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

The constructor creates an instance with the specified parent.

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