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Activity Forums Adobe After Effects Particular z-sorting issue

  • Particular z-sorting issue

    Posted by Mihai Wilson on October 19, 2021 at 11:52 am

    Hi, I’m attempting to use trapcode particular to create crowd of characters. (Imagine a Where’s Waldo scene). I’m using a textured sprite as my particle and spawning from a layer.

    My problem is some particles are spawned on top of others creating awkward situations. EG: a particle (character) is spawned on top of another and their legs cover the head of the particle underneath. Any tips on how one might work around this?

    Anders Hattne replied 4 years, 10 months ago 3 Members · 2 Replies
  • 2 Replies
  • Walter Soyka

    October 19, 2021 at 5:07 pm

    I imagine that you are using a Box emitter in X, Y and Z to spread your characters across the 3D frame. This will result in all kinds of crazy overlaps because your characters are being randomly placed in a volume; no one is standing on the floor.

    I think the easiest solve is to have Particular handle the z-sorting for you by setting up your scene so everyone is standing on a floor, then tilting the floor up.

    I’m assuming you’re using a Sprite particle type, and that your particles are set to face the camera.

    Set your Box emitter size to XYZ Individual. Set the Emitter Size X (across the screen) and the Emitter Size Z (in and out of the screen) to something large — maybe the width of your comp or larger. Set the Emitter Size Y to 0. You’ll see all your characters standing on a floor and properly z-sorted — but they will all be on a line, not spread across the entire height of your comp. Set the Emitter’s X Rotation to however steep you need (maybe 40 degrees) to tilt the “floor” up and cover the comp.

  • Anders Hattne

    October 20, 2021 at 10:17 am

    If that doesn’t work. How about trying with Trapcode Form?

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