A particle emitted by a 
    
ParticleSystem.
| Name | Type | Description | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| options | Object | An object with the following properties: 
 | 
Members
    Gets the age of the particle in seconds.
endColor : Color
    The color of the particle when it dies.
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    Default Value:
    
Color.WHITE
    
    
    
    
    
    
    
    The scale of the particle when it dies.
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    Default Value:
    
1.0
    
    
    
    
    
    
    
    The image to use for the particle.
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    Default Value:
    
undefined
    
    
    
    
    
    
    
imageSize : Cartesian2
    The dimensions, width by height, to scale the particle image in pixels.
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    Default Value:
    
new Cartesian(1.0, 1.0)
    
    
    
    
    
    
    
    The life of the particle in seconds.
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    Default Value:
    
Number.MAX_VALUE
    
    
    
    
    
    
    
    The mass of the particle in kilograms.
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    Default Value:
    
1.0
    
    
    
    
    
    
    
    Gets the age normalized to a value in the range [0.0, 1.0].
position : Cartesian3
    The positon of the particle in world coordinates.
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    Default Value:
    
Cartesian3.ZERO
    
    
    
    
    
    
    
startColor : Color
    The color of the particle when it is born.
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    Default Value:
    
Color.WHITE
    
    
    
    
    
    
    
    the scale of the particle when it is born.
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    Default Value:
    
1.0
    
    
    
    
    
    
    
velocity : Cartesian3
    The velocity of the particle in world coordinates.
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    Default Value:
    
Cartesian3.ZERO
    
    
    
    
    
    
    
