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RedShift ignores particles based objects in render sequence

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  • R
    resort-sand last edited by Aug 4, 2024, 4:57 PM

    In this scene, I am creating petals using emitters following and colliding with some objects, until suddenly, a week ago, I noticed that my render using redshift, ignores completely the main particles emitter randomly (example :frame 3 in my scene), even if:

    1- it is cached
    2-it is seen in the viewport
    2- it is renderable using Redshift IPR but not renderable using Picture Viewer nor as a saved picture
    3-It is renderable using standard and physical renderer

    When I bake the mograph that uses the particle group to Alembic, it works better but I have some petals exploded into small pieces like the picture shown (example: frame 4 in my scene)

    I changed the scene, debugged on and off, motion blur, bokeh, changing particles objects inside mograph, starting a new scene using the same setup...etc.

    Help is appreciated

    https://we.tl/t-hAMa81w1CN

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    • Dr. Sassi
      Dr. Sassi last edited by Aug 4, 2024, 5:51 PM

      Hi resort-sand,

      Thanks for using Wetransfer.

      I checked the file; the abc file was not part of the package. Some images were not part of the download.

      I cached it new as I saw that you had set the time to "F =-150". I increased the project time first to 0-300 (250 would be fine, but why not have some wiggle room).

      Then I set the time offset as well to -150

      After setting the project time back to 0-100.

      It rendered in the RS but not in the Picture Viewer. So I added a Matrix between the particle Group and the Cloner.

      https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_PROJECTS_DRS/20240804_CV4_2024_drs_24_RSpa_01.zip

      I checked and all renders fine here both render options (RS and PV).

      Is this working for you? Missing your abc-file, introduced some uncertainty here.

      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
        resort-sand last edited by Aug 4, 2024, 6:06 PM

        Thanks Dr. The alembic files were not very important to reproduce the bug, actually I am testing it now by putting a scatter object between the Particle Group and the Mograph object and the early tests show no render bugs.
        There is always a scatter object that solves an issue inside c4d
        I appreciate once again your quick solution, even on a Sunday

        Have a great day

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        • Dr. Sassi
          Dr. Sassi last edited by Aug 4, 2024, 6:13 PM

          Have a great Sunday as well, resort-sand.

          Thank you very much for your feedback. 🙂

          My best wishes for your project.

          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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