class QMorphingAnimation¶

A class implementing blend-shape morphing animation. More…

Synopsis¶

Properties¶

easingᅟ
interpolatorᅟ
methodᅟ
targetᅟ
targetNameᅟ
targetPositionsᅟ

Methods¶

def __init__()
def addMorphTarget()
def easing()
def getWeights()
def interpolator()
def method()
def morphTargetList()
def removeMorphTarget()
def setMorphTargets()
def setWeights()
def target()
def targetName()
def targetPositions()

Signals¶

def easingChanged()
def interpolatorChanged()
def methodChanged()
def targetChanged()
def targetNameChanged()
def targetPositionsChanged()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description¶

A QMorphingAnimation class implements blend-shape morphing animation to a target QGeometryRenderer . The QMorphingAnimation sets the correct QAttributes from the morph targets to the target geometry and calculates interpolator for the current position. The actual blending between the attributes must be implemented in the material. Qt3DAnimation::QMorphPhongMaterial implements material with morphing support for phong lighting model. The blending happens between 2 attributes - ‘base’ and ‘target’. The names for the base and target attributes are taken from the morph target names, where the base attribute retains the name it already has and the target attribute name gets ‘Target’ appended to the name. The interpolator can be set as a QParameter to the used material. All morph targets in the animation should contain the attributes with same names as those in the base geometry.

class Method¶

This enumeration specifies the morphing method.

Constant

Description

Qt3DAnimation.QMorphingAnimation.Normalized

The blending should use the normalized formula; V’ = Vbase * (1.0 - sum(Wi)) + sum[Vi * Wi]

Qt3DAnimation.QMorphingAnimation.Relative

The blending should use the relative formula; V’ = Vbase + sum[Vi * Wi]

Constant	Description
Qt3DAnimation.QMorphingAnimation.Normalized	The blending should use the normalized formula; V’ = Vbase * (1.0 - sum(Wi)) + sum[Vi * Wi]
Qt3DAnimation.QMorphingAnimation.Relative	The blending should use the relative formula; V’ = Vbase + sum[Vi * Wi]

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property easingᅟ: QEasingCurve¶

Holds the easing curve of the interpolator between morph targets.

Access functions:

easing()
setEasing()
Signal easingChanged()

property interpolatorᅟ: float¶

Holds the interpolator between base and target attributes.

Access functions:

interpolator()
Signal interpolatorChanged()

property methodᅟ: Qt3DAnimation.QMorphingAnimation.Method¶

Holds the morphing method. The default is Relative.

Access functions:

method()
setMethod()
Signal methodChanged()

property targetᅟ: QGeometryRenderer¶

Holds the target QGeometryRenderer the morphing animation is applied to.

Access functions:

target()
setTarget()
Signal targetChanged()

property targetNameᅟ: str¶

Holds the name of the target geometry. This is a convenience property making it easier to match the target geometry to the morphing animation. The name is usually same as the name of the parent entity of the target QGeometryRenderer, but does not have to be.

Access functions:

targetName()
setTargetName()
Signal targetNameChanged()

property targetPositionsᅟ: list of float¶

Holds the position values of the morph target. Each position in the list specifies the position of the corresponding morph target with the same index. The values must be in an ascending order. Values can be positive or negative and do not have any predefined unit.

Access functions:

targetPositions()
setTargetPositions()
Signal targetPositionsChanged()

__init__([parent=None])¶

Parameters:: parent – QObject

Construct a new QMorphingAnimation with parent.

addMorphTarget(target)¶

Parameters:: target – QMorphTarget

Add new morph target at the end of the animation.

easing()¶

Return type:: QEasingCurve

See also

setEasing()

Getter of property easingᅟ .

easingChanged(easing)¶

Parameters:: easing – QEasingCurve

Notification signal of property easingᅟ .

getWeights(positionIndex)¶

Parameters:: positionIndex – int
Return type:: .list of float

Return morph weights at positionIndex.

interpolator()¶

Return type:: float

Getter of property interpolatorᅟ .

interpolatorChanged(interpolator)¶

Parameters:: interpolator – float

Notification signal of property interpolatorᅟ .

method()¶

Return type:: Method

See also

setMethod()

Getter of property methodᅟ .

methodChanged(method)¶

Parameters:: method – Method

Notification signal of property methodᅟ .

morphTargetList()¶

Return type:: .list of Qt3DAnimation.QMorphTarget

Return morph target list.

removeMorphTarget(target)¶

Parameters:: target – QMorphTarget

Remove morph target from the animation.

setEasing(easing)¶

Parameters:: easing – QEasingCurve

See also

easing()

Setter of property easingᅟ .

setMethod(method)¶

Parameters:: method – Method

See also

method()

Setter of property methodᅟ .

setMorphTargets(targets)¶

Parameters:: targets – .list of Qt3DAnimation.QMorphTarget

Set morph targets to animation. Old targets are cleared.

setTarget(target)¶

Parameters:: target – QGeometryRenderer

See also

target()

Setter of property targetᅟ .

setTargetName(name)¶

Parameters:: name – str

See also

targetName()

Setter of property targetNameᅟ .

setTargetPositions(targetPositions)¶

Parameters:: targetPositions – .list of float

See also

targetPositions()

Setter of property targetPositionsᅟ .

setWeights(positionIndex, weights)¶

Parameters:

positionIndex – int
weights – .list of float

Sets morph weights at positionIndex.

target()¶

Return type:: QGeometryRenderer

See also

setTarget()

Getter of property targetᅟ .

targetChanged(target)¶

Parameters:: target – QGeometryRenderer

Notification signal of property targetᅟ .

targetName()¶

Return type:: str

See also

setTargetName()

Getter of property targetNameᅟ .

targetNameChanged(name)¶

Parameters:: name – str

Notification signal of property targetNameᅟ .

targetPositions()¶

Return type:: .list of float

See also

setTargetPositions()

Getter of property targetPositionsᅟ .

targetPositionsChanged(targetPositions)¶

Parameters:: targetPositions – .list of float

Notification signal of property targetPositionsᅟ .