QSpotLight

Encapsulate a Spot Light object in a Qt 3D scene. More

Inheritance diagram of PySide6.Qt3DRender.Qt3DRender.QSpotLight

Synopsis

Functions

Detailed Description

A spotlight is a light source that emits a cone of light in a particular direction.

A spotlight uses three attenuation factors to describe how the intensity of the light decreases over distance. These factors are designed to be used together in calcuating total attenuation. For the materials in Qt3D Extras the following formula is used, where distance is the distance from the light to the surface being rendered:

totalAttenuation = 1.0 / (constantAttenuation + (linearAttenuation * distance) + (quadraticAttenuation * distance * distance));

Custom materials may choose to interpret these factors differently.

class PySide6.Qt3DRender.Qt3DRender.QSpotLight([parent=None])
Parameters

parentPySide6.Qt3DCore.Qt3DCore.QNode

Constructs a new QSpotLight with the specified parent.

PySide6.Qt3DRender.Qt3DRender.QSpotLight.constantAttenuation()
Return type

float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.constantAttenuationChanged(constantAttenuation)
Parameters

constantAttenuation – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.cutOffAngle()
Return type

float

See also

setCutOffAngle()

PySide6.Qt3DRender.Qt3DRender.QSpotLight.cutOffAngleChanged(cutOffAngle)
Parameters

cutOffAngle – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.linearAttenuation()
Return type

float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.linearAttenuationChanged(linearAttenuation)
Parameters

linearAttenuation – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.localDirection()
Return type

PySide6.QtGui.QVector3D

PySide6.Qt3DRender.Qt3DRender.QSpotLight.localDirectionChanged(localDirection)
Parameters

localDirectionPySide6.QtGui.QVector3D

PySide6.Qt3DRender.Qt3DRender.QSpotLight.quadraticAttenuation()
Return type

float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.quadraticAttenuationChanged(quadraticAttenuation)
Parameters

quadraticAttenuation – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.setConstantAttenuation(value)
Parameters

value – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.setCutOffAngle(cutOffAngle)
Parameters

cutOffAngle – float

See also

cutOffAngle()

PySide6.Qt3DRender.Qt3DRender.QSpotLight.setLinearAttenuation(value)
Parameters

value – float

PySide6.Qt3DRender.Qt3DRender.QSpotLight.setLocalDirection(localDirection)
Parameters

localDirectionPySide6.QtGui.QVector3D

See also

localDirection()

PySide6.Qt3DRender.Qt3DRender.QSpotLight.setQuadraticAttenuation(value)
Parameters

value – float