QViewport Class

class Qt3DRender ::QViewport

A viewport on the Qt3D Scene. 更多...

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

该类在 Qt 5.7 引入。

所有成员列表，包括继承成员

特性

gamma : float
normalizedRect : QRectF

公共函数

	QViewport (Qt3DCore::QNode * parent = nullptr)
float	gamma () const
QRectF	normalizedRect () const

公共槽

void	setGamma (float gamma )
void	setNormalizedRect (const QRectF & normalizedRect )

信号

void	gammaChanged (float gamma )
void	normalizedRectChanged (const QRectF & normalizedRect )

详细描述

Qt3DRender::QViewport of the scene specifies at which portion of the render surface Qt3D is rendering to. Area outside the viewport is left untouched. It also controls global parameters to the rendering in that viewport like gamma.

特性文档编制

gamma : float

Specifies the gamma factor for the viewport. The default is 2.2 which should give proper result on most screens.

访问函数：

float	gamma () const
void	setGamma (float gamma )

通知程序信号：

void	gammaChanged (float gamma )

normalizedRect : QRectF

Specifies the normalised rectangle for the viewport, i.e. the viewport rectangle is specified relative to the render surface size. Whole surface sized viewport is specified as [0.0, 0.0, 1.0, 1.0], which is the default.

访问函数：

QRectF	normalizedRect () const
void	setNormalizedRect (const QRectF & normalizedRect )

通知程序信号：

void	normalizedRectChanged (const QRectF & normalizedRect )

成员函数文档编制

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

Constructs QViewport with given parent .