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Question on 3D tracking specific objects

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Rick Johnson
Question on 3D tracking specific objects
on Jan 8, 2012 at 2:15:44 am

I have searched everywhere and have not figured out an answer to my question. I am currently working on a short film in which characters will be using flashlights to create trails of light (using Trapcode Partiular 2). The shots are hand held so I Have been using the Foundry's Camera Tracker inside of AE, but have not found a way to tell it to specifically track the light coming from the flashlights in the shots. My goal is to track in a 3D null object to which I can parent a light to act as the emmiter for Particular. If anyone knows of how I can achieve this I would be very greatful if you could help me out.

Thanks


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Cassius Marques
Re: Question on 3D tracking specific objects
on Jan 9, 2012 at 7:03:31 pm

Whe you say "light coming from the flashlights" do you mean the bright spot on the flashlight(tip) or the light itself (volumetric light in 3d space)?

can you post a Screenshot? And also explain if you intend to emitt particles that stay in place (like http://en.wikipedia.org/wiki/Light_writing) or that follows the flashlight pointing direction?


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