VectorDirection3D QML Type

For specifying a direction towards the target direction. 更多...

import 語句：	import QtQuick3D.Particles3D
Since:	Qt 6.2
繼承：	Direction3D

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特性

direction : vector3d
directionVariation : vector3d
normalized : bool

詳細描述

This element sets emitted particle velocity towards the target direction vector. The length of the direction vector is used as the velocity magnitude.

For example, to emit particles towards some random direction within x: 50..150, y: -20..20, z: 0:

ParticleEmitter3D {
    ...
    velocity: VectorDirection3D {
        direction: Qt.vector3d(100, 0, 0)
        directionVariation: Qt.vector3d(50, 20, 0)
    }
}

特性文檔編製

direction : vector3d

This property defines the direction for particles target.

默認值為 (0, 100, 0) (upwards on the y-axis).

另請參閱 directionVariation .

directionVariation : vector3d

This property defines the direction variation for particles target.

默認值為 (0, 0, 0) (no variation).

另請參閱 direction .

normalized : bool

This property defines if the direction should be normalized after applying the variation. When this is false, variation affects the magnitude of the particles velocity. When set to true, variation affects the direction, but the magnitude is determined by the original direction length.

默認值為 false .