How to reverse particles animation of tyflow?

[HuaLi]

I made an animation with tyflow, I want to reverse it.


  how_to_reverse_animation.mp4 (Size: 2.69 MB / Downloads: 353)

Before, I made simple animation via setting key frames manually, exchanging the positons of key frames can reverse the animation.

How to reverse the animation of tyflow?

[tyFlow]

Use the retimer settings.

[HuaLi]

Use the retimer settings.

I tried setting "retimer", but it has no animation:


  retimer_settings.mp4 (Size: 2.17 MB / Downloads: 337)

And, I am not sure wheather there are confusions between "reverse" and "play back".

so I make a definition: 

forward: the door begins opening, then the particles get out of the red box.

reverse:  the particles get back to the red box, then the door closes, all return to the original state.

play back: the animation is still forward, plays again.

I want to reverse the animation, not play back. sorry English is not my mother tongue.

[tyFlow]

You need to set keyframes on the "frames" parameter. Please see the documentation for more info.

[HuaLi]

You need to set keyframes on the "frames" parameter. Please see the documentation for more info.

Thanks ,I will try it following this video, https://www.youtube.com/watch?v=6aU46ICbJJw