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No attraction

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  • R
    recording-team last edited by Oct 2, 2024, 6:26 PM

    no attraction.c4d

    I'm not clear how to enable the Attractor in this scene - I want the particles starting point to move in the direction of the Attractor as it crosses the stage. I put is as a child of both the Particle Group nd the Emitter (the docs are not very clear on this point), but I can;t see that it is working - I tried raising the strength quite a bit, but there is no noticeable difference. If you remove the Pyro tag it's easier to see that the Attractor is not having an impact on the position of the particles. Thanks for any assistance,.

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    • Dr. Sassi
      Dr. Sassi last edited by Dr. Sassi Oct 2, 2024, 10:24 PM Oct 2, 2024, 10:22 PM

      Hi recording-team,

      Thanks for the file!

      The Inverse Square function might limit your impression here, especially when simultaneously running friction and other forces.
      https://help.maxon.net/c4d/2025/en-us/Default.htm#html/OATTRACTOR-ID_OBJECTPROPERTIES.html#ATTRACTOROBJECT_FALLOFF_MODE

      Explore the "Falloff Type" setting of the Attractor.
      CV4_2024_drs_24_SIaf_01.c4d
      I have animated your Attractors a little bit to showcase what they do and used a Tracer for that as well.
      .

      Below is a scene to see the effect of a Field, which can be used (Spherical, for example). To set the Attractor to constant, define the falloff with fields that meet your specific needs.
      CV4_2025_drs_24_SIat_01.c4d

      All the best

      Dr. Sassi Sassmannshausen Ph.D.
      Senior Trainer, Maxon Master Trainer, L&D - Strategist
      Cinema 4D mentor since 2004, Member of VES, DCS.

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      • R
        recording-team last edited by Oct 2, 2024, 11:27 PM

        Thanks much. But how exactly do you enable an Attractor? Do you just add it to the scene and it is automagically enabled? There's no "Modifier" or Effector window to add it to. Does it just work by simply adding it to the scene? But then what if there were two sets of particles and you only wanted to impact one.
        Simple answer needed: How to enable an Attractor?
        thanks

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        • Dr. Sassi
          Dr. Sassi last edited by Dr. Sassi Oct 3, 2024, 2:36 AM Oct 3, 2024, 2:36 AM

          Hi recording-team,

          Here is a simple setup. Please move the Attractors around to see how they influence the groups.
          CV4_2025_drs_24_PAat_01.c4d

          I dragged them under the group I wanted to affect, and the strength was higher.
          For particles, that should do the trick. The main part of how the attraction works is in the tab "Object," to limit it, use the Fields.

          Cheers

          Dr. Sassi Sassmannshausen Ph.D.
          Senior Trainer, Maxon Master Trainer, L&D - Strategist
          Cinema 4D mentor since 2004, Member of VES, DCS.

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