Particle3D QML Type

Defines the type of the alignment.

Defines the type of the fading effect.

Defines the sorting mode of the particle. The sorting mode determines the order in which the particles are drawn.

This property defines the align mode used for the particles. Particle alignment means the direction that particles face.

The default value is Particle3D.AlignNone.

See also alignTargetPosition.

This property defines the position particles are aligned to. This property has effect only when the alignMode is set to Particle3D.AlignTowardsTarget.

See also alignMode.

This property defines the base color that is used for colorizing the particles.

The default value is "#FFFFFF" (white).

This property defines the color variation that is used for colorizing the particles. The values are in RGBA order and each value should be between 0.0 (no variation) and 1.0 (full variation).

For example, to create particles which will have translucent red colors between #ff0000 and #e50000, with 40% to 60% opacity:

ModelParticle3D {
    ...
    color: "#7fff0000"
    colorVariation: Qt.vector4d(0.1, 0.0, 0.0, 0.2)
}

The default value is (0, 0, 0, 0) (no variation).

See also unifiedColorVariation.

This property defines the duration in milliseconds for the fading in effect.

The default value is 250.

See also fadeInEffect and fadeOutDuration.

This property defines the fading effect used when the particles appear.

The default value is Particle3D.FadeOpacity.

See also fadeInDuration and fadeOutEffect.

This property defines the duration in milliseconds for the fading out effect.

The default value is 250.

See also fadeOutEffect and fadeInDuration.

This property defines the fading effect used when the particles reach their lifeSpan and disappear.

The default value is Particle3D.FadeOpacity.

See also fadeOutDuration and fadeInEffect.

This property defines if the particle has any transparency and should be blended with the background. Usually this should be true, like when the particle color doesn't have full alpha, texture contains semi-transparent pixels or particles opacity is faded in or out. Setting this to false can be an optimization in specific cases.

The default value is true.

See also color, fadeInEffect, and fadeOutEffect.

This property defines the maximum amount of particles that can exist at the same time. You can use particlesUsed for debugging how efficiently the allocated particles are used. If the maxAmount is too small, particles are reused before they reach the end of their lifeSpan. If the maxAmount is too big, unnecessary memory is allocated for the particles.

The default value is 100.

This property defines the sort mode used for the particles.

The default value is Particle3D.SortNone.

This property defines if the colorVariation should be applied uniformly for all the color channels. This means that all variations are applied with the same random amount.

For example, to create particles which will have yellow colors between #ffff00 and #7f7f00, so that the values of R and G color channels are always the same:

ModelParticle3D {
    ...
    color: "#ffff00"
    colorVariation: Qt.vector4d(0.5, 0.5, 0.0, 0.0)
    unifiedColorVariation: true
}

The default value is false.

See also colorVariation.