HI
I’m wondering is there anyway to control particle life speed?
Maybe i want to make some kind of easing on the speed of particle
Thank you
Have you read the manual: Particle effects in Defold ? Are you looking for the curve editor?
When you say “Life Speed”, do you mean particle velocity during its life time? I’m not 100% sure but I think the only way to affect that is with the four modifiers that can be added to the emitter.
If you tell what kind of particle effect you are trying to create, then someone might be able to give more precise help.
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I want to make the particle faster or slower when they’re approaching the end of their lifetime
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Hey @wind!
Depending on what effect you want to achieve it might be able to be done in some other way, but afaik there is no such control over particles - you can control initial speed and modify it in lifetime using modifiers (acceleration, drag), but it might be not enough to what I think you need 
If you could show an example it would be great!
Other idea that comes to my mind is that you can control the velocity of the object that is emitting the particles and tick “Inherit Velocity” and set Emitting space to world - this allow you to make an easing animation on the game object with that particle fx, which is useful for effects, when you have an effect of e.g. Collecting something - it usually is shown to players to be “traveling” from a place where it was collected to the “inventory”.
Nevertheless, I think Curve for speed to be controlled in life time, if possible, is worth to have a Feature Request in Defold Github repo 
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