QPhongAlphaMaterial

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

Synopsis

Functions

• def alpha ()

• def ambient ()

• def blendFunctionArg ()

• def destinationAlphaArg ()

• def destinationRgbArg ()

• def diffuse ()

• def shininess ()

• def sourceAlphaArg ()

• def sourceRgbArg ()

• def specular ()

Slots

• def setAlpha (alpha)

• def setAmbient (ambient)

• def setBlendFunctionArg (blendFunctionArg)

• def setDestinationAlphaArg (destinationAlphaArg)

• def setDestinationRgbArg (destinationRgbArg)

• def setDiffuse (diffuse)

• def setShininess (shininess)

• def setSourceAlphaArg (sourceAlphaArg)

• def setSourceRgbArg (sourceRgbArg)

• def setSpecular (specular)

Signals

• def alphaChanged (alpha)

• def ambientChanged (ambient)

• def blendFunctionArgChanged (blendFunctionArg)

• def destinationAlphaArgChanged (destinationAlphaArg)

• def destinationRgbArgChanged (destinationRgbArg)

• def diffuseChanged (diffuse)

• def shininessChanged (shininess)

• def sourceAlphaArgChanged (sourceAlphaArg)

• def sourceRgbArgChanged (sourceRgbArg)

• def specularChanged (specular)

Detailed Description

This class is deprecated; use QDiffuseSpecularMaterial instead.

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.

class PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial([parent=None])

Parameters

parent – PySide6.Qt3DCore.Qt3DCore.QNode

Constructs a new QPhongAlphaMaterial instance with parent object parent.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.alpha()

Return type

float

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

The default value is 0.5f.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.alphaChanged(alpha)

Parameters

alpha – float

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.ambient()

Return type

PySide6.QtGui.QColor

Holds the ambient color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.ambientChanged(ambient)

Parameters

ambient – PySide6.QtGui.QColor

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.blendFunctionArg()

Return type

BlendFunction

Holds the blend equation function argument.

See also

BlendFunction

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.blendFunctionArgChanged(blendFunctionArg)

Parameters

blendFunctionArg – BlendFunction

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.destinationAlphaArg()

Return type

Blending

Holds the blend equation destination alpha blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.destinationAlphaArgChanged(destinationAlphaArg)

Parameters

destinationAlphaArg – Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.destinationRgbArg()

Return type

Blending

Holds the blend equation destination RGB blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.destinationRgbArgChanged(destinationRgbArg)

Parameters

destinationRgbArg – Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.diffuse()

Return type

PySide6.QtGui.QColor

Holds the diffuse color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.diffuseChanged(diffuse)

Parameters

diffuse – PySide6.QtGui.QColor

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setAlpha(alpha)

Parameters

alpha – float

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

The default value is 0.5f.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setAmbient(ambient)

Parameters

ambient – PySide6.QtGui.QColor

Holds the ambient color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setBlendFunctionArg(blendFunctionArg)

Parameters

blendFunctionArg – BlendFunction

Holds the blend equation function argument.

See also

BlendFunction

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setDestinationAlphaArg(destinationAlphaArg)

Parameters

destinationAlphaArg – Blending

Holds the blend equation destination alpha blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setDestinationRgbArg(destinationRgbArg)

Parameters

destinationRgbArg – Blending

Holds the blend equation destination RGB blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setDiffuse(diffuse)

Parameters

diffuse – PySide6.QtGui.QColor

Holds the diffuse color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setShininess(shininess)

Parameters

shininess – float

Holds the shininess exponent.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setSourceAlphaArg(sourceAlphaArg)

Parameters

sourceAlphaArg – Blending

Holds the blend equation source alpha blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setSourceRgbArg(sourceRgbArg)

Parameters

sourceRgbArg – Blending

Holds the blend equation source RGB blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.setSpecular(specular)

Parameters

specular – PySide6.QtGui.QColor

Holds the specular color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.shininess()

Return type

float

Holds the shininess exponent.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.shininessChanged(shininess)

Parameters

shininess – float

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.sourceAlphaArg()

Return type

Blending

Holds the blend equation source alpha blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.sourceAlphaArgChanged(sourceAlphaArg)

Parameters

sourceAlphaArg – Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.sourceRgbArg()

Return type

Blending

Holds the blend equation source RGB blending argument.

See also

Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.sourceRgbArgChanged(sourceRgbArg)

Parameters

sourceRgbArg – Blending

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.specular()

Return type

PySide6.QtGui.QColor

Holds the specular color.

PySide6.Qt3DExtras.Qt3DExtras.QPhongAlphaMaterial.specularChanged(specular)

Parameters

specular – PySide6.QtGui.QColor