• Adobe After Effects

  Particular react to physics at a designated time (Fade-in Time)

  Posted by Chris Keller on July 25, 2017 at 4:58 am

  Hi all. How can i setup my particles with physics but not have them react right away? Is there a way to have them pop on (birth) and wait 30 frames before reacting to the wind. This can be done with Turbulence Field, but don’t see an option for the physics dropdown.

  Steve Bentley replied 9 years, 1 month ago 2 Members · 1 Reply
• 1 Reply

• 

  Steve Bentley

  July 31, 2017 at 3:20 pm

  I assume you mean Particular.
  The back of my brain says you can do this but I’ve just tried without luck. But here’s a cheat.
  Have the aux system kick in at frame 30 and give it it’s own physics paramater while keeping the parent particle’s physics turned off. Have the parents emit the kids from where they are and in a 1:1 population ratio and then kill the parent on the same frame the child is emitted.
  unles you have sub frame sampling turned on you won’t know that a child has taken over on frame 31.

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