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  • Cloth tag generates slight animated ripples on object — cannot get rid of it

     Zdenek Dovole updated 1 week, 1 day ago 2 Members · 3 Posts
  • Zdenek Dovole

    November 22, 2021 at 7:18 pm

    Hi there,

    I have a simple setup. Triangular flag with Cloth tag applied to it. Nothing more yet.

    But even there are no additional forces, small ripples are running across my flag constantly. Like slightly blowing breeze. I wonder why? Everything except gravity in Cloth tag is turned to 0.

    I would like to employ Field Force to animate the flag, but I want to start with a simple object without any ghost-movement beyond my control.

    What is that force? What generates it? And most importantly — how to stop it?

    Thank you in advance for any help!

    Here is the file:

  • Steve Bentley

    November 23, 2021 at 1:01 pm

    That ripple is coming from the fact that the whole system is springs including the belt tags. When you apply gravity (or rather hit play) if you watch closely you will see the whole thing drop a bit and that gets the springs vibrating. With no “force” to stop them they will continue forever.

    <div>You have some unusual settings in the Tag tab and I assume those are to try and stop the ripples. Try bringing your iterations down to 2 or upwards of 10 (top of the list). There will be an initial settle but then things should get smooth and stop.</div><div>


    The system is letting the flag drop right at the start (and you could animate the gravity on to ease this in) so there will be inherent ringing no matter what but reducing the iterations does get rid of the ripples.


  • Zdenek Dovole

    November 24, 2021 at 12:46 pm

    Thank you Steve!

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