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Activity Forums Adobe After Effects (Hopefully) Simple Checkerboard Problem

  • (Hopefully) Simple Checkerboard Problem

    Posted by Anne Lawant on January 25, 2011 at 11:49 pm

    Hey people, I have a hopefully simple problem. I’m trying to play a little with Time Displacement and I generated a checkerboard. Now I got the effect to work just fine, the only problem is with the actual checkerboard. Between every white and black square there is a line of one pixel that is grey. Now the info button and all say this line is white, but it’s not. The Time Displacement is reading the grey line as grey. Anyone know a fix?

    Walter Soyka replied 15 years, 3 months ago 3 Members · 4 Replies
  • 4 Replies
  • Todd Kopriva

    January 26, 2011 at 4:40 am

    The color is white, but it’s looking grey to you because of partial transparency, and it’s letting the background color (in your case black) show through.

    The checkerboard effect creates opaque squares of a color alternating with transparent squares, with a half-transparent border of color between.

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    Todd Kopriva, Adobe Systems Incorporated
    Technical Support for professional video software
    After Effects Help & Support
    Premiere Pro Help & Support
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  • Anne Lawant

    January 26, 2011 at 10:51 am

    That seems a little silly, not to give the option of having no half-transparant border. I’ll just make a checkerboard in Photoshop. Thanks!

  • Todd Kopriva

    January 26, 2011 at 12:02 pm

    > That seems a little silly, not to give the option of having no half-transparant border.

    You can submit a feature request here: https://www.adobe.com/go/wish

    How to give feedback on After Effects: https://bit.ly/93d6NF

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    Todd Kopriva, Adobe Systems Incorporated
    Technical Support for professional video software
    After Effects Help & Support
    Premiere Pro Help & Support
    ———————————————————————————————————

  • Walter Soyka

    January 26, 2011 at 1:17 pm

    You could apply a Levels effect to checkerboard layer, and crank either the input black or the input white on the alpha channel to force that border line to be either fully opaque or fully transparent — but the checkboard will either have a one pixel overlap or a one pixel gap.

    In Photoshop, the pattern fill should make pretty quick work of this.

    Walter Soyka
    Principal & Designer at Keen Live
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    RenderBreak Blog – What I’m thinking when my workstation’s thinking
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