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Help on jet exhaust Jetsons type

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Mark Fernandez
Help on jet exhaust Jetsons type
on Jul 17, 2009 at 7:20:22 am

Hi all. I was hoping to create a jet exhaust ala Jetsons (the cartoons) so i created an emitter and created a ring to make an instanced object. i connected the scale in general options to age it works but its in reverse!.meaning the ring i instanced started its life small and became big. i wanted it to start big and become small over age. can anybody help me on this or point me to a good tutorial thats quite like this. i dont know much scripting yet.


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Michiel Duvekot
Re: Help on jet exhaust Jetsons type
on Jul 17, 2009 at 2:05:32 pm

I'm not sure what the effects is supposed to look like (please post a picture next time) but reversing something is no difficult. If your scale value is equal to age, and you want to reverse that, and assuming age is normalized (meaning it has values between 0 and 1) than your expression becomes

scale = 1.0 - age;

Michiel
http://www.thnkr.com


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