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Activity Forums Adobe After Effects ..Problems with the wiggle in a null object..

  • ..Problems with the wiggle in a null object..

    Posted by Mijail Perez perez on November 23, 2011 at 2:09 pm

    ..Hello people!!!.. how are you!!!!…

    ..I have a project and in the camera´s null I have an expresion, wiggle(4,12).. I want to change the wiggle´s values in an especific frame.. I had read that I have to link the expression with a slider, but I don´t know how I have to do it.. Someone can explain me??…

    ..Thank you!!!…

    Angie Taylor replied 14 years, 5 months ago 3 Members · 10 Replies
  • 10 Replies
  • John Cuevas

    November 23, 2011 at 6:20 pm

    Add “Expression Controls > Slider Control” to your null layer. Open up both the slider effect and your position expression.

    Change the expression to: myFreq = effect("Slider Control")("Slider");
    wiggle(myFreq,12)

    Now just you can keyframe the frequency of the wiggles. If you were to add another slider and variable, you could also change the amplitude of your wiggles.

    Like this:myFreq = effect("Slider Control")("Slider");
    myAmp = effect("Slider Control 2")("Slider")
    wiggle(myFreq,myAmp)

    Johnny Cuevas, Editor

  • Mijail Perez perez

    November 23, 2011 at 6:42 pm

    ..Hello friend!!!..

    ..Ok, I added a slider control to the camera´s null, in the Expression: Position, I put: myFreq = effect(“Slider Control”)(“Slider”);
    wiggle(12,12). In the Slider Control / Slider (null effects), I put 0 in the second 0, in the second 2, I put 50 and for finish, 100 in the second 5. The wiggle is the same in all seconds.. What I did wrong??..

    ..Thank you…

  • John Cuevas

    November 23, 2011 at 7:01 pm

    Right now your expression just says wiggle(12,12), so it will always just be wiggling a 12 pixels.

    If I understand what you want to do, you need to change “the how much”(the second number in the wiggle). You need to change the second line of your expression to:
    wiggle(12,myFreq).

    Johnny Cuevas, Editor

  • Angie Taylor

    November 24, 2011 at 9:25 am

    Hi there,

    Here’s a project that will show you how to set up this variable wiggle. Any questions please ask.

    3312_variablewiggle.aep.zip

    cheers,

    Angie

    Angie Taylor animation & illustration for television, film, web and devices

    https://www.angietaylor.co.uk
    Twitter: theangietaylor
    Linkedin: theangietaylor
    https://www.facebook.com/pages/Angie-Taylor/118378194869002

  • Mijail Perez perez

    November 24, 2011 at 11:45 am

    …Hello John.. ok, I did it, and it works, but the wiggle´s amplitude is very big.. how can I do to put a amplitude small and more quick??.. I know that I have to put a small number, then, the wiggle would be small (amplitude), but is this case isn´t … In the wiggle, for example, wiggle(1,2), a number have to control the pixel movement and the other value to control other parameter, but i don´t know which is.. Can you help me, please??..

    ..Thank you!!!…

  • Mijail Perez perez

    November 24, 2011 at 1:51 pm

    ..Thank you Angie!!!!…. i´m going to see it!!…

  • Mijail Perez perez

    November 24, 2011 at 1:57 pm

    ..Hello John.. ok, I did it, and works, but the wiggle amplitude is very big.. how can I do to put a amplitude small and more quick??.. I know that to put a more small number would works, but is this case isn´t … In the wiggle, for example, wiggle(1,2), a numbre have to control the pixel movement and the other value other parameter but i don´t know what is.. Can you help me, please??..

    ..Thank you!!!…

  • Mijail Perez perez

    November 24, 2011 at 2:05 pm

    ..Hello Angie.. thank you for your help!!.. but I cant´open the file because was done in Ae 10.5… 🙁

  • Mijail Perez perez

    November 24, 2011 at 4:28 pm

    ..Thank you John, thank you Angie!!!!… I did it!!!… it works perfectly!!!.. thank you!!!…

  • Angie Taylor

    November 24, 2011 at 5:37 pm

    OopS! Sorry, I saved it as a CS5.5 project. Here’s a link to a CS5 project instead!

    3314_variablewiggle.aep.zip

    cheers,

    Angie

    Angie Taylor animation & illustration for television, film, web and devices

    https://www.angietaylor.co.uk
    Twitter: theangietaylor
    Linkedin: theangietaylor
    https://www.facebook.com/pages/Angie-Taylor/118378194869002

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