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Forums Adobe After Effects Expressions Digital Clock with variable rate

  • Digital Clock with variable rate

  • Cassius Marques

    January 12, 2011 at 7:57 pm

    Is there a way to modify Dan’s clock expression so I could animate the “rate”? through a slider control perhaps?

    I’m on a project that I need to timelapse things, and show the hours. So I wish I could increase the rate as I increase my clips speed. I would just precompose the text and time remmap it too, but in the end I’m with more than 24h, and after comps wont go that long.

    I know I can “edit” things and make it look right. But I was curious if there was a way to do it.

  • Kevin Camp

    January 13, 2011 at 5:19 pm

    if you are using the expression from this page:

    perhaps linking the clockStart to a slider and keyframe the slider to go from one start time to the next start time would work for you…

    Kevin Camp
    Senior Designer

  • Kevin Camp

    January 13, 2011 at 6:48 pm

    after trying this, it might actually be easier to set the rate to 0, and just keyframe the clockStart slider to go from the times you need…

    another way would be to pre-compose the time-lapse with the clock set at the rate that the time-lapse was recorded at… so if the footage was set to record 1 frame per second, i think the rate would be 60. then time re-map the footage with the time already stamped on it…

    Kevin Camp
    Senior Designer

  • Cassius Marques

    January 13, 2011 at 7:17 pm

    Hey Kevin, thank you for the tips, but that won’t work for me.

    setting the rating to 0 and animating the clockStart through a slider would require me to calculate all the times. Since it is a bunch of footages, with unique time speeds, and I’m still editting them, so at this point I woul’d have to look at the footage duration plus it’s current speed % at the time, minus the trimmed end and so on. A bunch of calculations for like 60 footages.

    As for the precomping together, can’t do that, I’m using kronos, and like I said it ain’t one footage. There are lot’s of them, and I need to illustrate the ammount of time required to complete them all.

    What I’ll do is after everything is set, I’ll start at 0 with the desired rate, and every time I have to set a new rate, I’ll break the layer, write in the new current clockStart value and change the rate to match the footage.

    Having the right expression(if possible of course) woul’d spare me from duplicating layers and filling in infos, that’s all I guess. I’m sure it would come in hand some time in the future too.

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