QDiffuseSpecularMaterial Class
(Qt3DExtras::QDiffuseSpecularMaterial)The QDiffuseSpecularMaterial class provides a default implementation of the phong lighting effect. More...
| Header: | #include <QDiffuseSpecularMaterial> |
| qmake: | QT += 3dextras |
| Since: | Qt 5.10 |
| Instantiated By: | DiffuseSpecularMaterial |
| Inherits: | Qt3DRender::QMaterial |
This class was introduced in Qt 5.10.
Properties
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Public Functions
| QDiffuseSpecularMaterial(Qt3DCore::QNode *parent = nullptr) | |
| virtual | ~QDiffuseSpecularMaterial() |
| QColor | ambient() const |
| QVariant | diffuse() const |
| bool | isAlphaBlendingEnabled() const |
| QVariant | normal() const |
| float | shininess() const |
| QVariant | specular() const |
| float | textureScale() const |
Public Slots
| void | setAlphaBlendingEnabled(bool enabled) |
| void | setAmbient(const QColor &ambient) |
| void | setDiffuse(const QVariant &diffuse) |
| void | setNormal(const QVariant &normal) |
| void | setShininess(float shininess) |
| void | setSpecular(const QVariant &specular) |
| void | setTextureScale(float textureScale) |
Signals
| void | alphaBlendingEnabledChanged(bool enabled) |
| void | ambientChanged(const QColor &ambient) |
| void | diffuseChanged(const QVariant &diffuse) |
| void | normalChanged(const QVariant &normal) |
| void | shininessChanged(float shininess) |
| void | specularChanged(const QVariant &specular) |
| void | textureScaleChanged(float textureScale) |
Detailed Description
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.
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.
Property Documentation
alphaBlending : bool
Indicates if the alpha information coming from the diffuse property will be taken into account during rendering. Defaults to false.
Access functions:
| bool | isAlphaBlendingEnabled() const |
| void | setAlphaBlendingEnabled(bool enabled) |
Notifier signal:
| void | alphaBlendingEnabledChanged(bool enabled) |
ambient : QColor
Holds the ambient color that is emitted by an object without any other light source.
Access functions:
| QColor | ambient() const |
| void | setAmbient(const QColor &ambient) |
Notifier signal:
| void | ambientChanged(const QColor &ambient) |
diffuse : QVariant
Holds the diffuse color of the material that is emitted for rough surface reflections with the lights. This can be either a plain color value or a texture.
Access functions:
| QVariant | diffuse() const |
| void | setDiffuse(const QVariant &diffuse) |
Notifier signal:
| void | diffuseChanged(const QVariant &diffuse) |
normal : QVariant
Holds the current normal map texture of the material. This can only be a texture, otherwise it is ignored. By default this map is not set.
Access functions:
| QVariant | normal() const |
| void | setNormal(const QVariant &normal) |
Notifier signal:
| void | normalChanged(const QVariant &normal) |
shininess : float
Holds the shininess exponent. Higher values of shininess result in a smaller and brighter highlight.
Defaults to 150.0.
Access functions:
| float | shininess() const |
| void | setShininess(float shininess) |
Notifier signal:
| void | shininessChanged(float shininess) |
specular : QVariant
Holds the specular color of the material that is emitted for shiny surface reflections with the lights. This can be either a plain color value or a texture.
Access functions:
| QVariant | specular() const |
| void | setSpecular(const QVariant &specular) |
Notifier signal:
| void | specularChanged(const QVariant &specular) |
textureScale : float
Holds the current texture scale. It is applied as a multiplier to texture coordinates at render time. Defaults to 1.0.
When used in conjunction with QTextureWrapMode::Repeat, textureScale provides a simple way to tile a texture across a surface. For example, a texture scale of 4.0 would result in 16 (4x4) tiles.
Access functions:
| float | textureScale() const |
| void | setTextureScale(float textureScale) |
Notifier signal:
| void | textureScaleChanged(float textureScale) |
Member Function Documentation
QDiffuseSpecularMaterial::QDiffuseSpecularMaterial(Qt3DCore::QNode *parent = nullptr)
Constructs a new QDiffuseSpecularMaterial instance with parent object parent.
[virtual] QDiffuseSpecularMaterial::~QDiffuseSpecularMaterial()
Destroys the QDiffuseSpecularMaterial.
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