TargetDirection3D QML Type

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

import 语句：	import QtQuick3D.Particles3D
Since:	Qt 6.2
继承：	Direction3D

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特性

magnitude : real
magnitudeVariation : real
normalized : bool
position : vector3d
positionVariation : vector3d

详细描述

This element sets emitted particle velocity towards the target position.

For example, to emit particles towards position (100, 0, 0) with random magnitude between 10..20:

ParticleEmitter3D {
    ...
    velocity: TargetDirection3D {
        position: Qt.vector3d(100, 0, 0)
        normalized: true
        magnitude: 15.0
        magnitudeVariation: 5.0
    }
}

特性文档编制

magnitude : real

This property defines the magnitude in position change per second. Negative magnitude accelerates the opposite way from the position . When the normalized is false, this is multiplied with the distance to the target position.

默认值为 1.0 .

另请参阅 magnitudeVariation .

magnitudeVariation : real

This property defines the magnitude variation in position change per second. When the normalized is false, this is multiplied with the distance to the target position.

默认值为 0.0 .

另请参阅 magnitude .

normalized : bool

This property defines if the distance to position should be considered as normalized or not. When this is false, distance to the position affects the magnitude of the particles velocity. When set to true, distance is normalized and velocity amount comes only from magnitude and magnitudeVariation .

默认值为 false .

另请参阅 magnitude and magnitudeVariation .

position : vector3d

This property defines the position for particles target.

默认值为 (0, 0, 0) (the center of the emitter).

另请参阅 positionVariation .

positionVariation : vector3d

This property defines the position variation for particles target.

默认值为 (0, 0, 0) (no variation).

另请参阅 position .