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Forums Adobe After Effects Using Plexus to position points randomly on a sphere

  • Using Plexus to position points randomly on a sphere

  • Paul Roper

    April 27, 2021 at 4:23 pm

    Hello. I’m trying to have a bunch of Plexus lines surrounding a sphere (that kind of ‘global communications’ kinda thing). I can create a sphere with points/lines, and add some noise to it to shift the points to random positions. But I want to move them randomly over the surface of the sphere – i.e. move in UV, while keeping their normals (altitude from the earth’s surface) constant. Imagine a load of satellites, all at the same altitude, orbiting the earth, connected by lines. Is this do-able? I did think maybe I’ll have to set up the Plexus on a flat surface, then use CC Sphere to wrap it around my planet. But that just feels like a bit of a cop-out!

  • Paul Roper

    April 27, 2021 at 5:03 pm

    …and my next question, almost predictably, is:
    How can I make points only appear within countries (i.e. not the sea) of my map? I know I could liberally scatter a load of nulls in my comp over the land masses, but I feel there should be a way to tell Plexus “Create points randomly where the alpha of this layer > 0”.

  • Paul Roper

    May 11, 2021 at 8:59 am

    Any thoughts, anyone? I’ve now finished that job, but I’m still curious how to do it, if anyone has any ideas they feel like sharing!?

  • Paul Roper

    July 4, 2022 at 3:13 pm

    Nobody? I’m still waiting patiently here…

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