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Activity Forums Adobe After Effects What does this timeline comp black corner represent and how do I modify it?

  • What does this timeline comp black corner represent and how do I modify it?

    Posted by Vinh Ton on October 28, 2012 at 3:11 pm

    Notice where the red arrow is pointing:

    What is that black corner on the comp and how do I modify it? Thanks ahead.

    John Cuevas replied 13 years, 4 months ago 4 Members · 7 Replies
  • 7 Replies
  • John Cuevas

    October 29, 2012 at 1:15 am

    Means that’s the start of the clip and I don’t think you can modify it.

    Johnny Cuevas, Editor
    Thinkck.com

    “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
    —THOMAS EDISON on inventing the light bulb.

  • Vinh Ton

    October 29, 2012 at 4:04 am

    Thanks, how come the top comp does not have it?

  • James Huenergardt

    October 29, 2012 at 6:52 am

    Because you’ve ‘trimmed’ the clip so that’s not the ‘physical’ start of the clip.

    Hope this helps.

    Jim

    Reel Inspirations – http://www.reelinspirations.com
    Commercials, Dramas, Image Pieces, Documentaries, Motion Graphics

  • Vinh Ton

    October 29, 2012 at 1:25 pm

    Thanks, didn’t even realize I trimmed it.

  • Darby Edelen

    October 29, 2012 at 7:11 pm

    [James Huenergardt] “Because you’ve ‘trimmed’ the clip so that’s not the ‘physical’ start of the clip.”

    That black corner will also disapper if you have time remapping enabled on the layer.

    Any ‘timeless’ layers (solids, images, shape layers, text layers, lights & cameras) will also not have that indicator.

    Darby Edelen

  • Vinh Ton

    October 30, 2012 at 1:31 pm

    Hi Darby,

    Thanks! That sounds more like my situation. They should be almost identical pre comps of animated text that is time mapped and has an loopout() expression. It puzzles me why one has the black diamond and is not “extendable”.

    I created the top one, let’s call it PCA, without the black diamond and it is still extendable. Rather than recreate all the effects and keyframes,
    -I just duplicated PCA and called it PCB
    -changed the text inside

    So with exception of the text changed, everything should be identical, but as you see it is not on the timeline:
    -visually with the black diamond
    -functionally in that I can’t extend the PCB pre-comp

  • John Cuevas

    December 26, 2012 at 9:15 pm

    no problem, glad I could help

    Johnny Cuevas, Editor
    Thinkck.com

    “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
    —THOMAS EDISON on inventing the light bulb.

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