Adobe After Effects Forum
How to make particles stay on the ground (trail effect)
How to make particles stay on the ground (trail effect)
by Pit Mahoney on Feb 17, 2012 at 2:08:19 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: http://vimeo.com/36940592

Hope you guys can help me out.

Thanks.
pit


Re: #Particular How to make particles stay on the ground #AfterEffects
by Angie Taylor on Feb 17, 2012 at 9:11:15 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;

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

http://www.motionscript.com/

Hope this helps!

cheers,

Angie

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

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