内容

• 特性
• 公共函数
• 公共槽
• 信号
• 详细描述

QPhongAlphaMaterial Class

( Qt3DExtras::QPhongAlphaMaterial )

The QPhongAlphaMaterial class provides a default implementation of the phong lighting effect with alpha. 更多...

头：	#include <QPhongAlphaMaterial>
qmake:	QT += 3dextras
Since:	Qt 5.7
继承：	Qt3DRender::QMaterial

• 所有成员列表，包括继承成员

特性

alpha : float ambient : QColor blendFunctionArg : Qt3DRender::QBlendEquation::BlendFunction destinationAlphaArg : Qt3DRender::QBlendEquationArguments::Blending destinationRgbArg : Qt3DRender::QBlendEquationArguments::Blending

diffuse : QColor shininess : float sourceAlphaArg : Qt3DRender::QBlendEquationArguments::Blending sourceRgbArg : Qt3DRender::QBlendEquationArguments::Blending specular : QColor

• 1 特性继承自 Qt3DRender::QMaterial
• 1 特性继承自 Qt3DCore::QComponent
• 3 特性继承自 Qt3DCore::QNode
• 1 特性继承自 QObject

公共函数

	QPhongAlphaMaterial (Qt3DCore::QNode * parent = nullptr)
	~QPhongAlphaMaterial ()
float	alpha () const
QColor	ambient () const
Qt3DRender::QBlendEquation::BlendFunction	blendFunctionArg () const
Qt3DRender::QBlendEquationArguments::Blending	destinationAlphaArg () const
Qt3DRender::QBlendEquationArguments::Blending	destinationRgbArg () const
QColor	diffuse () const
float	shininess () const
Qt3DRender::QBlendEquationArguments::Blending	sourceAlphaArg () const
Qt3DRender::QBlendEquationArguments::Blending	sourceRgbArg () const
QColor	specular () const

• 4 公共函数继承自 Qt3DRender::QMaterial
• 2 公共函数继承自 Qt3DCore::QComponent
• 11 公共函数继承自 Qt3DCore::QNode
• 32 公共函数继承自 QObject

公共槽

void	setAlpha (float alpha )
void	setAmbient (const QColor & ambient )
void	setBlendFunctionArg (Qt3DRender::QBlendEquation::BlendFunction blendFunctionArg )
void	setDestinationAlphaArg (Qt3DRender::QBlendEquationArguments::Blending destinationAlphaArg )
void	setDestinationRgbArg (Qt3DRender::QBlendEquationArguments::Blending destinationRgbArg )
void	setDiffuse (const QColor & diffuse )
void	setShininess (float shininess )
void	setSourceAlphaArg (Qt3DRender::QBlendEquationArguments::Blending sourceAlphaArg )
void	setSourceRgbArg (Qt3DRender::QBlendEquationArguments::Blending sourceRgbArg )
void	setSpecular (const QColor & specular )

• 1 公共槽继承自 Qt3DRender::QMaterial
• 1 公共槽继承自 Qt3DCore::QComponent
• 3 公共槽继承自 Qt3DCore::QNode
• 1 公共槽继承自 QObject

信号

void	alphaChanged (float alpha )
void	ambientChanged (const QColor & ambient )
void	blendFunctionArgChanged (Qt3DRender::QBlendEquation::BlendFunction blendFunctionArg )
void	destinationAlphaArgChanged (Qt3DRender::QBlendEquationArguments::Blending destinationAlphaArg )
void	destinationRgbArgChanged (Qt3DRender::QBlendEquationArguments::Blending destinationRgbArg )
void	diffuseChanged (const QColor & diffuse )
void	shininessChanged (float shininess )
void	sourceAlphaArgChanged (Qt3DRender::QBlendEquationArguments::Blending sourceAlphaArg )
void	sourceRgbArgChanged (Qt3DRender::QBlendEquationArguments::Blending sourceRgbArg )
void	specularChanged (const QColor & specular )

• 1 信号继承自 Qt3DRender::QMaterial
• 3 信号继承自 Qt3DCore::QComponent
• 4 信号继承自 Qt3DCore::QNode
• 2 信号继承自 QObject

额外继承成员

• 11 静态公共成员继承自 QObject
• 2 保护函数继承自 Qt3DCore::QNode
• 9 保护函数继承自 QObject

详细描述

The QPhongAlphaMaterial class provides a default implementation of the phong lighting effect with alpha.

The phong lighting effect is based on the combination of 3 lighting components ambient, diffuse and specular. The relative strengths of these components are controlled by means of their reflectivity coefficients which are modelled as RGB triplets:

• Ambient is the color that is emitted by an object without any other light source.
• Diffuse is the color that is emitted for rought surface reflections with the lights.
• Specular is the color emitted for shiny surface reflections with the lights.
• The shininess of a surface is controlled by a float property.
• Alpha is the transparency of the surface between 0 (fully transparent) and 1 (opaque).

This material uses an effect with a single render pass approach and performs per fragment lighting. Techniques are provided for OpenGL 2, OpenGL 3 or above as well as OpenGL ES 2.

特性文档编制

alpha : float

Holds the alpha component of the object which varies between 0 and 1.

The default value is 0.5f.

访问函数：

float	alpha () const
void	setAlpha (float alpha )

通知程序信号：

void	alphaChanged (float alpha )

ambient : QColor

Holds the ambient color.

访问函数：

QColor	ambient () const
void	setAmbient (const QColor & ambient )

通知程序信号：

void	ambientChanged (const QColor & ambient )

blendFunctionArg : Qt3DRender::QBlendEquation::BlendFunction

Holds the blend equation function argument.

访问函数：

Qt3DRender::QBlendEquation::BlendFunction	blendFunctionArg () const
void	setBlendFunctionArg (Qt3DRender::QBlendEquation::BlendFunction blendFunctionArg )

通知程序信号：

void	blendFunctionArgChanged (Qt3DRender::QBlendEquation::BlendFunction blendFunctionArg )

另请参阅 Qt3DRender::QBlendEquation::BlendFunction .

destinationAlphaArg : Qt3DRender::QBlendEquationArguments::Blending

Holds the blend equation destination alpha blending argument.

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	destinationAlphaArg () const
void	setDestinationAlphaArg (Qt3DRender::QBlendEquationArguments::Blending destinationAlphaArg )

通知程序信号：

void	destinationAlphaArgChanged (Qt3DRender::QBlendEquationArguments::Blending destinationAlphaArg )

另请参阅 Qt3DRender::QBlendEquationArguments::Blending .

destinationRgbArg : Qt3DRender::QBlendEquationArguments::Blending

Holds the blend equation destination RGB blending argument.

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	destinationRgbArg () const
void	setDestinationRgbArg (Qt3DRender::QBlendEquationArguments::Blending destinationRgbArg )

通知程序信号：

void	destinationRgbArgChanged (Qt3DRender::QBlendEquationArguments::Blending destinationRgbArg )

另请参阅 Qt3DRender::QBlendEquationArguments::Blending .

diffuse : QColor

Holds the diffuse color.

访问函数：

QColor	diffuse () const
void	setDiffuse (const QColor & diffuse )

通知程序信号：

void	diffuseChanged (const QColor & diffuse )

shininess : float

Holds the shininess exponent.

访问函数：

float	shininess () const
void	setShininess (float shininess )

通知程序信号：

void	shininessChanged (float shininess )

sourceAlphaArg : Qt3DRender::QBlendEquationArguments::Blending

Holds the blend equation source alpha blending argument.

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	sourceAlphaArg () const
void	setSourceAlphaArg (Qt3DRender::QBlendEquationArguments::Blending sourceAlphaArg )

通知程序信号：

void	sourceAlphaArgChanged (Qt3DRender::QBlendEquationArguments::Blending sourceAlphaArg )

另请参阅 Qt3DRender::QBlendEquationArguments::Blending .

sourceRgbArg : Qt3DRender::QBlendEquationArguments::Blending

Holds the blend equation source RGB blending argument.

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	sourceRgbArg () const
void	setSourceRgbArg (Qt3DRender::QBlendEquationArguments::Blending sourceRgbArg )

通知程序信号：

void	sourceRgbArgChanged (Qt3DRender::QBlendEquationArguments::Blending sourceRgbArg )

另请参阅 Qt3DRender::QBlendEquationArguments::Blending .

specular : QColor

Holds the specular color.

访问函数：

QColor	specular () const
void	setSpecular (const QColor & specular )

通知程序信号：

void	specularChanged (const QColor & specular )

成员函数文档编制

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

Default constructs an instance of QPhongAlphaMaterial.

QPhongAlphaMaterial:: ~QPhongAlphaMaterial ()

销毁 QPhongAlphaMaterial .