• Adobe After Effects

  How to make particles stay on the ground (trail effect)

  Posted by Pit Mahoney on February 17, 2012 at 2:08 am

  Hi there.
  I am a newbie and as such I would need your help.

  I am trying to apply a particle effect using Trapcode Particular to a mountain bike wheel.
  The problem is that the footage has a camera pan to the right and I don’t know how to apply the tracking I got from mocha. I want the particles to “stay on the ground” but I can’t understand what to do.
  This is a link to the footage I am working on: https://vimeo.com/36940592

  Hope you guys can help me out.

  Thanks.
  pit

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  Angie Taylor replied 14 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Angie Taylor

  February 17, 2012 at 9:11 am

  Hi there,

  It’s not a straightforward job but what you’ll have to do is use expressions to link the tracking data from Mocha to the Particular properties. If you’ve never used expressions before I recommend these websites to help you get started;

  https://www.jjgifford.com/expressions/basics/pickwhip.html

  https://www.motionscript.com/

  Hope this helps!

  cheers,

  Angie

  Angie Taylor animation & illustration for television, film, web and devices

  https://www.angietaylor.co.uk
  Twitter: theangietaylor
  Linkedin: theangietaylor
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