Particle using a Qt Quick 3D Model. 更多...
| 导入语句： | import QtQuick3D.Particles3D |
| Since: | Qt 6.2 |
| 继承： | Particle3D |
The ModelParticle3D is a logical particle element that creates particles from a Qt Quick 3D Model 组件。
| delegate : 组件 |
The delegate provides a template defining each object instantiated by the particle.
For example, to allocate 200 red cube particles:
Component {
id: particleComponent
Model {
source: "#Cube"
scale: Qt.vector3d(0.2, 0.2, 0.2)
materials: DefaultMaterial { }
}
}
ModelParticle3D {
id: particleRed
delegate: particleComponent
maxAmount: 200
color: "#ff0000"
}
| instanceTable : Instancing |
The instanceTable provides access to the Instancing table of the model particle. ModelParticle3D uses an internal instance table to implement efficient rendering. This table can be applied to the instancing property of models that are not part of the particle system.
It is also possible to use this feature to provide an instancing table without showing any particles. This is done by omitting the delegate property. For example:
ParticleSystem3D {
id: psystem
ModelParticle3D {
id: particleRed
maxAmount: 200
color: "#ff0000"
colorVariation: Qt.vector4d(0.5,0.5,0.5,0.5)
}
ParticleEmitter3D {
particle: particleRed
velocity: VectorDirection3D {
direction: Qt.vector3d(-20, 200, 0)
directionVariation: Qt.vector3d(20, 20, 20)
}
particleScale: 0.2
emitRate: 20
lifeSpan: 2000
}
}
Model {
source: "#Sphere"
instancing: particleRed.instanceTable
materials: PrincipledMaterial {
baseColor: "yellow"
}
}