QMorphingAnimation Class▲
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Header: QMorphingAnimation
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Since: Qt 5.9
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CMake:
find_package(Qt6 REQUIRED COMPONENTS 3danimation)
target_link_libraries(mytarget PRIVATE Qt6::3danimation)
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qmake: QT += 3danimation
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Inherited By:
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Instantiated By: qml-qt3d-animation-morphinganimation.xml
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Inherits: Qt3DAnimation::QAbstractAnimation
Detailed Description▲
A Qt3DAnimation::QMorphingAnimation class implements blend-shape morphing animation to a target QGeometryRenderer. The QMorphingAnimation sets the correct QAttributes from the morph targets to the target QGeometryRenderer::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.
Member Type Documentation▲
enum QMorphingAnimation::Method▲
This enumeration specifies the morphing method.
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Constant |
Value |
Description |
|---|---|---|
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Qt3DAnimation::QMorphingAnimation::Normalized |
0 |
The blending should use the normalized formula; V' = Vbase * (1.0 - sum(Wi)) + sum[Vi * Wi] |
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Qt3DAnimation::QMorphingAnimation::Relative |
1 |
The blending should use the relative formula; V' = Vbase + sum[Vi * Wi] |
Property Documentation▲
easing : QEasingCurve▲
Holds the easing curve of the interpolator between morph targets.
Access functions:
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easing() const
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void setEasing(const &easing)
Notifier signal:
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void easingChanged(const &easing)
[read-only] interpolator : const float▲
Holds the interpolator between base and target attributes.
Access functions:
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float interpolator() const
Notifier signal:
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void interpolatorChanged(float interpolator)
method : Method▲
Holds the morphing method. The default is Relative.
Access functions:
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method() const
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void setMethod( method)
Notifier signal:
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void methodChanged( method)
target : Qt3DRender::QGeometryRenderer*▲
Holds the target QGeometryRenderer the morphing animation is applied to.
Access functions:
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*target() const
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void setTarget( *target)
Notifier signal:
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void targetChanged( *target)
targetName : QString▲
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:
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targetName() const
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void setTargetName(const name)
Notifier signal:
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void targetNameChanged(const &name)
targetPositions : QVector<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:
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<float> targetPositions() const
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void setTargetPositions(const <float> &targetPositions)
Notifier signal:
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void targetPositionsChanged(const <float> &targetPositions)
Member Function Documentation▲
[explicit] QMorphingAnimation::QMorphingAnimation(QObject *parent = nullptr)▲
Construct a new QMorphingAnimation with parent.
void QMorphingAnimation::addMorphTarget(Qt3DAnimation::QMorphTarget *target)▲
Add new morph target at the end of the animation.
QVector<float> QMorphingAnimation::getWeights(int positionIndex)▲
Return morph weights at positionIndex.
QVector<Qt3DAnimation::QMorphTarget *> QMorphingAnimation::morphTargetList()▲
Return morph target list.
void QMorphingAnimation::removeMorphTarget(Qt3DAnimation::QMorphTarget *target)▲
Remove morph target from the animation.
void QMorphingAnimation::setMorphTargets(const QVector<Qt3DAnimation::QMorphTarget *> &targets)▲
Set morph targets to animation. Old targets are cleared.
void QMorphingAnimation::setWeights(int positionIndex, const QVector<float> &weights)▲
Sets morph weights at positionIndex.