CGTalk - smoke more transparent the longer it lives?

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theflatlander

09-26-2006, 06:59 PM

I have a particle emmiter that´s shooting away smoke, but I want the smoke to become more transparent the longer it lives, and even travel slower the longer it lives.......but I guess I have to use some kind of expressions for this, right?

Does anyone know how to make this possible?

Thanks!/Jimmy

DrChimay

09-26-2006, 09:09 PM

If what you want is the particle to fade out in time all you have to do is add an opacityPP attr and connect a ramp to it, this way you control the particle´s opacity based on it´s age.....there´s an attribute called CONSERVE wich you use to slow down velocity......
And that´s all ;)

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