One particle interaction per frame

posted to: Variable Radius

Does each particle interact with only one other in each frame? like if there are two or more interfering particles? or Repeat zone allows to bounce two or more particles from each other each frame?

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  • Martin Bergwerf replied

    HI Nikita,

    If I remember correctly, each Particle only interacts with the one closest to it. With variable Radii, it is of course possible that a Particle collides with another Particle that is not its closest neighbor. If the Radii variation is large, then that will happen more often than with a small variation.

    So, yes, you could do more checks per Particle per Frame (probably by using a Repeat Zone, as you indicated), but the question is, is it worth it? It's a bit of a balancing act, between calculation time, accuracy and stability.

  • Adrian Bellworthy replied

    I'm not so sure!

    Say you are using 24 frames per second, that's 1 frame per 40 milliseconds (approx). About 6 - 10 frames in the time it takes you to blink.
    The extra calculations seem absurd to think two particles will interact within the same 40 milliseconds, unless they are moving too fast to even notice them.
    That would mean two particles are at a microscopically close, probably an identical distance from the collision particle and with an identical speed.

    The variables would suggest it is extremely unlikely,

    in conclusion: not worth the effort.

    That's the end of today's science lesson.

    A. Einstein
    😆😂