For applying friction proportional to the particle's current velocity. 更多...
| import 语句: | import QtQuick.Particles 2.15 | 
| 继承: | 
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								 factor : real  | 
						
A drag will be applied to moving objects which is this factor of their current velocity.
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								 threshold : real  | 
						
The drag will only be applied to objects with a velocity above the threshold velocity. The drag applied will bring objects down to the threshold velocity, but no further.
The default threshold is 0