QSpotLight Class

( Qt3DRender::QSpotLight )

Encapsulate a Spot Light object in a Qt 3D scene. 更多...

头: #include <QSpotLight>
qmake: QT += 3drender
Since: Qt 5.5
实例化: SpotLight
继承: Qt3DRender::QAbstractLight

特性

公共函数

QSpotLight (Qt3DCore::QNode * parent = nullptr)
QVector3D attenuation () const
float constantAttenuation () const
float cutOffAngle () const
float linearAttenuation () const
QVector3D localDirection () const
float quadraticAttenuation () const

公共槽

void setConstantAttenuation (float value )
void setCutOffAngle (float cutOffAngle )
void setLinearAttenuation (float value )
void setLocalDirection (const QVector3D & localDirection )
void setQuadraticAttenuation (float value )

信号

void constantAttenuationChanged (float constantAttenuation )
void cutOffAngleChanged (float cutOffAngle )
void linearAttenuationChanged (float linearAttenuation )
void localDirectionChanged (const QVector3D & localDirection )
void quadraticAttenuationChanged (float quadraticAttenuation )

保护函数

QSpotLight (QSpotLightPrivate & dd , Qt3DCore::QNode * parent = nullptr)

额外继承成员

详细描述

Encapsulate a Spot Light object in a Qt 3D scene.

特性文档编制

constantAttenuation : float

Specifies the constant attenuation of the spot light

访问函数:

float constantAttenuation () const
void setConstantAttenuation (float value )

通知程序信号:

void constantAttenuationChanged (float constantAttenuation )

cutOffAngle : float

Specifies the cut off angle of the spot light

访问函数:

float cutOffAngle () const
void setCutOffAngle (float cutOffAngle )

通知程序信号:

void cutOffAngleChanged (float cutOffAngle )

linearAttenuation : float

Specifies the linear attenuation of the spot light

访问函数:

float linearAttenuation () const
void setLinearAttenuation (float value )

通知程序信号:

void linearAttenuationChanged (float linearAttenuation )

localDirection : QVector3D

Specifies the local direction of the spot light

访问函数:

QVector3D localDirection () const
void setLocalDirection (const QVector3D & localDirection )

通知程序信号:

void localDirectionChanged (const QVector3D & localDirection )

quadraticAttenuation : float

Specifies the quadratic attenuation of the spot light

访问函数:

float quadraticAttenuation () const
void setQuadraticAttenuation (float value )

通知程序信号:

void quadraticAttenuationChanged (float quadraticAttenuation )

成员函数文档编制

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

构造新的 QSpotLight 采用指定 parent .

[protected] QSpotLight:: QSpotLight ( QSpotLightPrivate & dd , Qt3DCore::QNode * parent = nullptr)

Copy constructor.

QVector3D QSpotLight:: attenuation () const

Returns the attenuation of the spot light.