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Activity Forums Adobe After Effects Make an object’s LED’s start flashing?

  • Make an object’s LED’s start flashing?

    Posted by Phillip Roh on June 4, 2008 at 4:07 pm

    Hello! I’m shooting a short film with a few friends. One scene has a phone ringing on a table and the character picking it up. The phone we have in mind has some LEDs on it that flash when ringing, so it makes for a good visual cue to the viewer in conjunction with a ringing SFX.

    However, this moment takes place during a slightly tricky camera move. As we’re all amateurs in filmmaking+acting, ideally we won’t have to worry about the exact timing of the phone call (add the flashing lights in AFX) so that the cast can focus on their lines/movements. My AFX skills are far superior to my filmmaking skills (still isn’t that much though).

    I have Adobe AFX 6.0. Is there any way to create a realistic light flashing using the pre-installed effects?

    Shooting on consumer DV :-), so I imagine I’ll also have to go through a step of making the light flashes look ugly.

    Tonya Love-joy replied 13 years, 10 months ago 4 Members · 4 Replies
  • 4 Replies
  • Chris Wright

    June 6, 2008 at 4:22 am

    layer->mode Stencil alpha from a bulb graphic then with a light or glow effect, keyframe it to pulsate. The stencil alpha will automatically make it look good. Two seconds done, and no arguing with the producer, lol.

  • Phillip Roh

    June 6, 2008 at 1:28 pm

    [Chris Wright] “will automatically make it look good”

    My most favorite phrase in the world of filmmaking. Thanks!

  • Shari Morgan

    July 7, 2012 at 9:13 am

    EASY FLICKER (or blink on/off) for newbies like me.

    I made a light flicker on and off beatifully:
    (1) click on EFFECT tab at top. Scroll down and choose STROBE LIGHT (one item from top on pull-down menu).
    ….(FYI NOTE: Make sure you have chosen the footage or object that you want to effect first.)

    At that point look at the left side of screen and you will see the “EFFECT CONTROLS” for the STROBE LIGHT. Each customizable control has a little arrow >. Click on the ones you want to play with to customize the effect to reach your desired result.

    What I did with EFFECTS CONTROL to get an off/on FLICKER:
    (2) I upped RANDOM STROBE from 0% to 86% (for a lot of flickers)
    (3) And changed Stobe from: “Operates on Color Only” V
    – – – – – – – – – – – – – – – TO “MAKES LAYER TRANSPARENT”

    it was that simple and it looked great!

    ****To see the “EFFECT CONTROLS” panel for “STOBE LIGHT” (with my changes highlighted) on an actual screen shot, use this link: 4383_2effectcontolsforstobelight.jpg.zip

    Have fun. Hope this helps someone. So many repies assume the asker already knows almost everything, I assume the opposite. Better too much information than not enough.

    Shari

    -Every accomplishment began with just a simple dream.

  • Tonya Love-joy

    July 17, 2012 at 9:23 pm

    thanks shari, i’ll try this tonight!

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