QPhongAlphaMaterial Class

(Qt3DRender::QPhongAlphaMaterial)

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

Header:	#include <QPhongAlphaMaterial>
Since:	Qt 5.5
Inherits:	Qt3DRender::QMaterial

• List of all members, including inherited members

Properties

alpha : float ambient : QColor diffuse : QColor

shininess : float specular : QColor

• 1 property inherited from Qt3DRender::QMaterial
• 1 property inherited from Qt3DCore::QComponent
• 2 properties inherited from Qt3DCore::QNode
• 1 property inherited from QObject

Public Functions

	QPhongAlphaMaterial(Qt3DCore::QNode *parent = Q_NULLPTR)
	~QPhongAlphaMaterial()
float	alpha() const
QColor	ambient() const
QColor	diffuse() const
float	shininess() const
QColor	specular() const

• 6 public functions inherited from Qt3DRender::QMaterial
• 2 public functions inherited from Qt3DCore::QComponent
• 6 public functions inherited from Qt3DCore::QNode
• 31 public functions inherited from QObject

Public Slots

void	setAlpha(float alpha)
void	setAmbient(const QColor &ambient)
void	setDiffuse(const QColor &diffuse)
void	setShininess(float shininess)
void	setSpecular(const QColor &specular)

• 1 public slot inherited from Qt3DRender::QMaterial
• 1 public slot inherited from Qt3DCore::QComponent
• 2 public slots inherited from Qt3DCore::QNode
• 1 public slot inherited from QObject

Signals

void	alphaChanged(float alpha)
void	ambientChanged(const QColor &ambient)
void	diffuseChanged(const QColor &diffuse)
void	shininessChanged(float shininess)
void	specularChanged(const QColor &specular)

• 1 signal inherited from Qt3DRender::QMaterial
• 2 signals inherited from Qt3DCore::QComponent
• 2 signals inherited from Qt3DCore::QNode
• 2 signals inherited from QObject

Additional Inherited Members

• 11 static public members inherited from QObject
• 1 protected function inherited from Qt3DRender::QMaterial
• 1 protected function inherited from Qt3DCore::QComponent
• 3 protected functions inherited from Qt3DCore::QNode
• 9 protected functions inherited from QObject
• 1 static protected member inherited from Qt3DCore::QNode

Detailed Description

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 is 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.

Member Function Documentation

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

Constructs a new QPhongAlphaMaterial instance with parent object parent.

QPhongAlphaMaterial::~QPhongAlphaMaterial()

Destroys the QPhongAlphaMaterial.