QQuick3DParticleSystem * m_system
void directionVariationChanged()
void setNormalized(bool normalized)
void setDirection(const QVector3D &direction)
QQuick3DParticleVectorDirection(QObject *parent=nullptr)
\qmltype VectorDirection3D \inherits Direction3D \inqmlmodule QtQuick3D.Particles3D
void setDirectionVariation(const QVector3D &directionVariation)
QVector3D sample(const QQuick3DParticleData &d) override