內容

• 特性
• 公共函數
• 公共槽
• 信號
• 靜態公共成員
• 詳細描述

QForwardRenderer Class

( Qt3DExtras::QForwardRenderer )

The QForwardRenderer provides a default FrameGraph implementation of a forward renderer. 更多...

頭：	#include <QForwardRenderer>
qmake:	QT += 3dextras
Since:	Qt 5.7
實例化：	ForwardRenderer
繼承：	Qt3DRender::QTechniqueFilter

• 所有成員列錶，包括繼承成員
• 過時成員

特性

camera : Qt3DCore::QEntity* clearColor : QColor externalRenderTargetSize : QSize frustumCulling : bool

gamma : float surface : QObject* viewportRect : QRectF

• 3 特性繼承自 Qt3DCore::QNode
• 1 特性繼承自 QObject

公共函數

	QForwardRenderer (Qt3DCore::QNode * parent = nullptr)
virtual	~QForwardRenderer ()
Qt3DCore::QEntity *	camera () const
QColor	clearColor () const
QSize	externalRenderTargetSize () const
float	gamma () const
bool	isFrustumCullingEnabled () const
QObject *	surface () const
QRectF	viewportRect () const

• 6 公共函數繼承自 Qt3DRender::QTechniqueFilter
• 1 公共函數繼承自 Qt3DRender::QFrameGraphNode
• 13 公共函數繼承自 Qt3DCore::QNode
• 31 公共函數繼承自 QObject

公共槽

void	setCamera (Qt3DCore::QEntity * camera )
void	setClearColor (const QColor & clearColor )
void	setExternalRenderTargetSize (const QSize & size )
void	setFrustumCullingEnabled (bool enabled )
void	setGamma (float gamma )
void	setSurface (QObject * surface )
void	setViewportRect (const QRectF & viewportRect )

• 3 公共槽繼承自 Qt3DCore::QNode
• 1 公共槽繼承自 QObject

信號

void	cameraChanged (Qt3DCore::QEntity * camera )
void	clearColorChanged (const QColor & clearColor )
void	externalRenderTargetSizeChanged (const QSize & size )
void	frustumCullingEnabledChanged (bool enabled )
void	gammaChanged (float gamma )
void	surfaceChanged (QObject * surface )
void	viewportRectChanged (const QRectF & viewportRect )

• 4 信號繼承自 Qt3DCore::QNode
• 2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

• 9 靜態公共成員繼承自 QObject

額外繼承成員

• 1 保護函數繼承自 Qt3DRender::QFrameGraphNode
• 2 保護函數繼承自 Qt3DCore::QNode
• 9 保護函數繼承自 QObject

詳細描述

The QForwardRenderer provides a default FrameGraph implementation of a forward renderer.

Forward rendering is what OpenGL traditionally uses. It renders directly to the backbuffer one object at a time shading each one as it goes.

QForwardRenderer is a single leaf FrameGraph tree which contains a Qt3DRender::QViewport ， Qt3DRender::QCameraSelector ，和 Qt3DRender::QClearBuffers 。 QForwardRenderer has a default requirement filter key whose name is "renderingStyle" and value "forward". If you need to filter out your techniques, you should do so based on that filter key.

By default the viewport occupies the whole screen and the clear color is white. Frustum culling is also enabled.

特性文檔編製

camera : Qt3DCore::QEntity *

Holds the current camera entity used to render the scene.

注意： A camera is a QEntity that has a QCameraLens as one of its components.

訪問函數：

Qt3DCore::QEntity *	camera () const
void	setCamera (Qt3DCore::QEntity * camera )

通知程序信號：

void	cameraChanged (Qt3DCore::QEntity * camera )

clearColor : QColor

Holds the current clear color of the scene. The frame buffer is initialized to the clear color before rendering.

訪問函數：

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

通知程序信號：

void	clearColorChanged (const QColor & clearColor )

externalRenderTargetSize : QSize

Contains the size of the external render target. External render targets are relevant when rendering does not target a window surface (as set in surface ).

訪問函數：

QSize	externalRenderTargetSize () const
void	setExternalRenderTargetSize (const QSize & size )

通知程序信號：

void	externalRenderTargetSizeChanged (const QSize & size )

frustumCulling : bool

Indicates if the renderer applies frustum culling to the scene.

訪問函數：

bool	isFrustumCullingEnabled () const
void	setFrustumCullingEnabled (bool enabled )

通知程序信號：

void	frustumCullingEnabledChanged (bool enabled )

gamma : float

Holds the gamma value the renderer applies to the scene.

訪問函數：

float	gamma () const
void	setGamma (float gamma )

通知程序信號：

void	gammaChanged (float gamma )

surface : QObject *

Holds the current render surface.

訪問函數：

QObject *	surface () const
void	setSurface (QObject * surface )

通知程序信號：

void	surfaceChanged (QObject * surface )

viewportRect : QRectF

Holds the current normalized viewport rectangle.

訪問函數：

QRectF	viewportRect () const
void	setViewportRect (const QRectF & viewportRect )

通知程序信號：

void	viewportRectChanged (const QRectF & viewportRect )

成員函數文檔編製

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

Default constructs an instance of QForwardRenderer.

[虛擬] QForwardRenderer:: ~QForwardRenderer ()

Destroys the instance of QForwardRenderer. The destructor is virtual.