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Constraint an object to specific vertex of an other object

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  • S
    simple-life last edited by Feb 22, 2024, 11:26 PM

    Hi there, Hope you are all doing well.

    I'm trying to find a way to constrain an object to a specific vertex of an other object.

    For more context :

    I have simulated cloth simulation in Marvelous Designer that I exported in alembic.
    In C4D, I want to attach some props to the garment.

    The PERFECT solution for me would be to be able to attach my props to a specific vertex of the alembic cached object.

    If you know any workaround for that I would be so grateful!

    Thank you very much.

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    • Dr. Sassi
      Dr. Sassi last edited by Dr. Sassi Feb 23, 2024, 8:15 AM Feb 23, 2024, 8:08 AM

      Hi simple-life,

      Here are two ways to create this:
      https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_Clips_DRS/20240223_CV4_2024_drs_24_SImg_01-11.zip

      The first one uses the surface deformer to place a tiny polygon, a "mesh matrix," in a cloner.
      The other file, "11.c4d", makes the abc file "editable" [c] and allows so access to the point data (yes, you asked about this, and file number one doesn't follow this question).

      A single point is insufficient here, so I introduce the Target Tag. With three points, preferably from a single polygon, the position is taken, a target, and an Up vector, which allows a stable orientation.

      https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_Clips_DRS/20240223_CV4_2024_drs_24_SImg_01-11.zip

      (Perhaps set the XPresso Priority higher, or later in the Object Manager)

      Let me know if that works for you.

      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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