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emitter opacity

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anthony Faulkner
emitter opacity
on May 24, 2010 at 5:39:42 am

Is there some way to control the opacity of the individual particles used in an emitter.

think smoke coming out the back of a car driving along. I want each particle to fade out after a set period of time in sequence.

thanks


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Mark Spencer
Re: emitter opacity
on May 24, 2010 at 1:02:12 pm

Yes, open the color gradient controls in the Emitter tab of the Inspector and add opacity tags to the opacity gradient (white stripe) over the color gradient. It represents the opacity of the cells over their lives - add black tags to reduce opacity at specific times, e.g. have them fade in and fade out.

--
Mark Spencer
Freelance Producer/Editor/Motion Graphics Artist
Apple-certified Master Trainer
Author, Motion 4 from Peachpit Press
http://www.applemotion.net


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anthony Faulkner
Re: emitter opacity
on May 25, 2010 at 1:30:41 am

Thank you very much!


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