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Activity Forums Adobe After Effects Expressions Expressions Help

  • Posted by Stetsonpipes on April 29, 2006 at 2:13 am

    Hi,

    I want to use an expression to control the cannon. I was wondering if anyone could tell me how to program an exponential curve. One that decays over time. I tried goiing to Dan Ebberts site but i keep getting this travel web site. Any help would be appreciated.

    thanks

    Rafael replied 19 years, 5 months ago 4 Members · 6 Replies
  • 6 Replies
  • Dan Ebberts

    April 29, 2006 at 4:09 am

    It appears that my hosting company dropped tha ball on renewing my domain name. I don’t know if I’ll be able to recover it or not.

    Anyway, what is it that you want to control exponentially?

    Dan

  • Stetsonpipes

    April 29, 2006 at 5:13 am

    First of all, thank you for replying. Everything I know about expressions so far I’ve learned from your web site. I wanted to control the cannon’s particle per second parameter with a decaying curve. It’s to repel the layer exploder from the blowing text away like sand tutorial. I realize that you can turn off the cannon with a couple of keyframes but it’s more for practice then anything else. I guess I just like playing with expressions. Any idea when the site may be back up?

    thanks again

  • Dan Ebberts

    April 29, 2006 at 6:21 am

    Try this – it might get you headed in the right direction:

    maxRate = 300; //starting particles per second
    decay = 1.5;

    maxRate/Math.exp(time*decay)

    As for MotionScript.com, I haven’t been able to get in contact with anybody at my hosting site (globat.com). In fact, their site doesn’t seem to be accessible either. So the answer to your question is – I don’t know.

    Dan

  • Stetsonpipes

    April 29, 2006 at 3:35 pm

    Thanks. That helps.

  • Christopher R. green

    April 30, 2006 at 11:58 pm

    Dan,
    Sorry to hear you’re having problems with globat. I also use them. And yes, I have had some serious problems with them [long boring story not included].
    Have you been able to get in touch with anyone there? If you do, ask (demand) that they put you on their caicos server — apparently it is up (since my site is up).

    best of luck

    Chris G

  • Rafael

    November 20, 2006 at 9:05 pm

    Globat… what a nightmare, I had so many troubles with them, about 20-30 times! They were great 3 years ago but then straight down the toilet.

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