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Activity Forums Adobe After Effects How to – LED lights or polka dots?

  • How to – LED lights or polka dots?

    Posted by Flyboy on November 3, 2007 at 7:22 am

    Hey guys…I’ve been trying to make a LED wall (concert style) in AE and can’t figure out how to do it.
    I have a PSD of building silhouettes and I want the LEDs to cover just the buildings and be able to change color.

    I tried using ball action…but there wasn’t enough control over the ball size and distance apart. Maybe there’s an effect I’m overlooking or maybe this effect is called something totally different…

    I’ve searched all over for the past 3 days for “polka dots” or “LED light” tutorials for AE…and the only ones I find are either for some crazy expensive plugin for FinalCut or something totally unrelated to what I’m trying to achieve.

    Hot thanks for your help!

    Flyboy replied 18 years, 6 months ago 3 Members · 3 Replies
  • 3 Replies
  • Mike Park

    November 4, 2007 at 12:48 am

    I am not sure what exact effect you are looking for, but you might be on the right track with ball effect.

    Make a new comp. Put a new comp size solid layer in with the solid set to a mid grey. apply the ball effect and play with the grid spacing and ball size until you get the look you want. Next apply a hue/saturation effect and animate this setting to manipulate the ball colors. Finally either apply a mask to the ball layer and add control points until you have the outline you want or import your psd and use one of the track matte options (alpha, Luminence…) to mask out the balls you want lit up. This assumes that you want the balls all of the same color. If you want the buildings to light up independantly, you will have to either make multiple layers of the balls or apply your color footage overtop the balls as an overlay, or make the balls white and use the ball layer as a luminence track matte for your color.

    I hope this helps. If you need any further explaination or help, let me know.

    Best of luck

  • Antony Buonomo

    November 4, 2007 at 1:35 pm

    Do a search for the Retrodots plugin from Dragonfly

  • Flyboy

    November 4, 2007 at 5:35 pm

    thanks!I just masked out some buildings in the ball action layer…I was trying to do things the hard way as usual.

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