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Activity Forums Apple Motion Would like to create particle system that “sticks” to another layer

  • Would like to create particle system that “sticks” to another layer

    Posted by Todd George on May 13, 2005 at 6:12 pm

    Hello all

    I’m trying to create a lower third for a video and want to use a particle system in a background layer
    my thinking (or at least my hope is) that I should be able to create the solid filled border on one layer the particle system (and it’s cells and emiter) on another layer and the text on the final layer

    what I want is for the particles to stay within the border
    I tried aline emiter but over time the particles begin to sneak outside of the solid bar I made for the lower third right now the individual particle cells (which are three rectangles) hav an attrated to simulator applied to each of them individually this seems to keep them on the border

    but there must be an easier way?

    thanks in advance for any help

    G4power book 1.5ghz with a gig o ram
    G5 power mac 1.8ghz with a 1.5 gigs o ram
    os 10.4 (ps tiger rocks)
    fcp4.5
    motion 1x
    dvdsp3x
    lightwave 8x
    combustion3x

    Michael J c replied 21 years ago 3 Members · 2 Replies
  • 2 Replies
  • Adolfo Rozenfeld

    May 13, 2005 at 9:46 pm

    Unfortunately, Motion doesn’t yet have wall/floor region parameters, like particle systems in other applications have. They will surely add that functionality in a future version. The soliution you came up with is as good as any other, I guess.

    You shouldn’t have to apply it to individual cells, though. I achieved what you want to do (or what I understand you want to do) by applying the behavior to the emitter. The key parameter is “drag”, which forces the whole system to stay “glued” together. Also “fall off rate”, which controls how the the cells spread.

    Adolfo Rozenfeld
    Buenos Aires – Argentina
    https://www.adolforozenfeld.com
    adolfo@adolforozenfeld.com

  • Michael J c

    May 16, 2005 at 6:07 am

    What about using the lower third border to create a mask that you place on top of the particle layer? Would that work?

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