- Qt 6.5
- Qt 3D
- C++ Classes
- Qt3DExtras
- QDiffuseSpecularMapMaterial
- Qt 6.5.2 Reference Documentation

# QDiffuseSpecularMapMaterial Class

class Qt3DExtras::QDiffuseSpecularMapMaterial

The QDiffuseSpecularMapMaterial provides a default implementation of the phong lighting effect where the diffuse and specular light components are read from texture maps. More...

Header: | #include <QDiffuseSpecularMapMaterial>
CMake: | find_package(Qt6 REQUIRED COMPONENTS 3dextras) target_link_libraries(mytarget PRIVATE Qt6::3dextras)
qmake: | QT += 3dextras
Inherits: | Qt3DRender::QMaterial

This class is deprecated. We strongly advise against using it in new code.

- List of all members, including inherited members

## Properties

ambient : QColor diffuse : Qt3DRender::QAbstractTexture* shininess : float | specular : Qt3DRender::QAbstractTexture* textureScale : float

## Public Functions

| QDiffuseSpecularMapMaterial(Qt3DCore::QNode *parent = nullptr)
virtual | ~QDiffuseSpecularMapMaterial()
QColor | ambient() const
Qt3DRender::QAbstractTexture * | diffuse() const
float | shininess() const
Qt3DRender::QAbstractTexture * | specular() const
float | textureScale() const

## Public Slots

void | setAmbient(const QColor &ambient)
void | setDiffuse(Qt3DRender::QAbstractTexture *diffuse)
void | setShininess(float shininess)
void | setSpecular(Qt3DRender::QAbstractTexture *specular)
void | setTextureScale(float textureScale)

## Signals

void | ambientChanged(const QColor &ambient)
void | diffuseChanged(Qt3DRender::QAbstractTexture *diffuse)
void | shininessChanged(float shininess)
void | specularChanged(Qt3DRender::QAbstractTexture *specular)
void | textureScaleChanged(float textureScale)

## Detailed Description

This class is deprecated; use Qt3DExtras::QDiffuseSpecularMaterial instead.

The specular 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 rough 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

### ambient : QColor

Holds the current 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 : Qt3DRender::QAbstractTexture*

Holds the current diffuse map texture.

By default, the diffuse texture has the following properties:

- Linear minification and magnification filters
- Linear mipmap with mipmapping enabled
- Repeat wrap mode
- Maximum anisotropy of 16.0

Access functions:

Qt3DRender::QAbstractTexture * | diffuse() const
void | setDiffuse(Qt3DRender::QAbstractTexture *diffuse)

Notifier signal:

void | diffuseChanged(Qt3DRender::QAbstractTexture *diffuse)

### shininess : float

Holds the current shininess as a float value. 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 : Qt3DRender::QAbstractTexture*

Holds the current specular map texture.

By default, the specular texture has the following properties:

- Linear minification and magnification filters
- Linear mipmap with mipmapping enabled
- Repeat wrap mode
- Maximum anisotropy of 16.0

Access functions:

Qt3DRender::QAbstractTexture * | specular() const
void | setSpecular(Qt3DRender::QAbstractTexture *specular)

Notifier signal:

void | specularChanged(Qt3DRender::QAbstractTexture *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

### `[explicit]` QDiffuseSpecularMapMaterial::QDiffuseSpecularMapMaterial(Qt3DCore::QNode *parent = nullptr)

Constructs a new QDiffuseSpecularMapMaterial instance with parent object parent.

### `[virtual]` QDiffuseSpecularMapMaterial::~QDiffuseSpecularMapMaterial()

Destroys the QDiffuseSpecularMapMaterial instance.