QPhongAlphaMaterial Class

(Qt3DExtras::QPhongAlphaMaterial)

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

头文件: #include <QPhongAlphaMaterial>
qmake: QT += 3dextras
开始支持版本: Qt 5.7
基类: Qt3DRender::QMaterial

属性

公有函数

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

公有槽函数

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)

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)

其他继承的成员

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.

属性

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)

Notifier signal:

void alphaChanged(float alpha)

ambient : QColor

Holds the ambient color.

访问函数:

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

Notifier signal:

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)

Notifier signal:

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

参见 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)

Notifier signal:

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

参见 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)

Notifier signal:

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

参见 Qt3DRender::QBlendEquationArguments::Blending.

diffuse : QColor

Holds the diffuse color.

访问函数:

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

Notifier signal:

void diffuseChanged(const QColor &diffuse)

shininess : float

Holds the shininess exponent.

访问函数:

float shininess() const
void setShininess(float shininess)

Notifier signal:

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)

Notifier signal:

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

参见 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)

Notifier signal:

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

参见 Qt3DRender::QBlendEquationArguments::Blending.

specular : QColor

Holds the specular color.

访问函数:

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

Notifier signal:

void specularChanged(const QColor &specular)

成员函数

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

Default constructs an instance of QPhongAlphaMaterial.

QPhongAlphaMaterial::~QPhongAlphaMaterial()

Destroys the QPhongAlphaMaterial.