• Adobe After Effects

  Animating motion paths once the length is defined

  Posted by Ben Le tourneau on July 20, 2012 at 3:09 pm

  Hello guys

  After pulling my hair out can someone put me out of my misery please.
  I have trapcode particular emitting using a motion path over a period of time. (works a charm) The issue is that I want to keyframe some manual path movement so the particles move up and down the path throughout the 30second animation. Once the particles start emitting it takes 3 seconds for them to complete the path then for the rest of the animation they move and follow along the path fantastically well however I would like to keyframe the stream to move up and down. in the middle of the path from around 8 seconds onwards in the animation. Is this at all possible?

  Thanks I have uploaded a screen grab for reference.

  screenshot2012-07-20at15.30.17.png

  Ben

  Ben Le Tourneau

  Ben Le tourneau replied 14 years, 1 month ago 2 Members · 2 Replies
• 2 Replies

• 

  Erik Waluska

  July 21, 2012 at 4:31 pm

  I’m not totally sure I understand what you’re trying to do but if you are trying to just move a section of the particles and not affect the others then you might try pre-comping the particles and using the puppet tool to animate the movement.
• 

  Ben Le tourneau

  July 24, 2012 at 12:47 pm

  Thanks Guys

  This sadly doesn’t work for me as this distorts the sprite when I try to warp the particle flow, also the gravity effects only the global flow/stream and sadly not a local part. The closes I have manged to get is using the spherical field but this isn’t great.

  Thanks for you help guys I have actually decided to give up as I don’t think it can be done.

  Ben Le Tourneau

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