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  • Fluid simulation in Cinema 4D without third party plugins

     Scott Green updated 1 year, 2 months ago 2 Members · 3 Posts
  • Scott Green

    October 5, 2021 at 1:11 pm

    I’ve been asked to recreate a fluid effect exactly like this.

    I don’t have X-Particles or anything like that so would this be possible in C4D R21 without any plugins, or any expensive plugins?

    How do I get those particles to follow that RS pattern/spline too?

    Thanks in advance.

  • Steve Bentley

    October 5, 2021 at 9:38 pm

    You sure can. Using Thinking particles, you can emit particles in a stream that follows a path or interacts with other objects (a splash) or is effected by any of the forces in C4D. You can even do dew on the bottle itself.

    Then use a metaball object to contain the particles inside. It will make what amounts to a droplet out of each particle and as that particle nears others they will coalesce to form one mesh. Metaballs can be tricky because you have to get the scale right. Start with a big composition so that 10cm is a very small object. When the hull factor on the metaballs is too low and there are no other particles close, the droplets can totally disappear (which can be a good thing). The number of polys can also get out of hand really fast as you try to keep the mesh smooth. You might also be helped out here by the Volume builder (I haven’t tried liquids with this as I just thought of it but now I’m off to try).

    This is easier and more physically accurate with a program like RealFlow or TurbulenceFD or Fume but they are not cheap plug ins, but depending on what the liquid has to do it can be done in C4D. In the end it’s all about the material you put on the metaballs mesh.

    What I just thought of that I haven’t tried is: can you take the particles from Particular in AE out of AE and into C4D as points or particles? because Particular now has fluid dynamics that would take the heavy lifting out of animating the Thinking Particles and getting them to look fluid and right.

  • Scott Green

    October 6, 2021 at 7:21 am

    Really? You can bring Particular into C4D? I didn’t know that. I think I’ll look into that some more. I much prefer to do that as I have more experience with Particular than I do metaballs. Let me know how you get on and I’ll do the same. Thanks for getting back to me.

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