Jump to content

Sign in to follow this  
unipus

Vibrating string

Recommended Posts

Hi all... trying to come up with some solutions to animate high frequency vibrations on a string that is tethered at both ends. A guitar string is a good comparison, although not literally what I'm doing. I've tried searching and everything I've found so far seems very old/dead links/dead files. How would you go about such a thing in 2020, ideally in the most physically correct way possible? I haven't locked into a renderer yet. Could be standard/physical, Octane... maybe others.

Share this post


Link to post

I am by no means an expert in this area, but most things I have read seem to think that trying to do this with dynamics (softbody or spline dyn) is largely unsuccessful, so I'd be thinking about other ways.

 

Formula effector on spline with linear field falloffs seems like a good place to start...

 

CBR

Share this post


Link to post

simple scene example...

(xp+vibrate tag)

 

vibrating_strings.zip

 

Share this post


Link to post
  • Topic Author
  • Thanks bezo -- with a LOT more points on the spline and some motion blur, I think that it pretty close to doing what I want!

    Share this post


    Link to post
  • Topic Author
  • Actually, one caveat to that which I thought I'd figured out but it turns out no... I'm trying to add decay to it. I figured a delay effector and a fracture object would do it and I thought it was working but no. I'm guessing this is because expresso is driving the parameters to absolute values, rather than "animating"? Any way to deal with that?

    Share this post


    Link to post
  • Topic Author
  • What I'm guessing is the same core issue: I'm also placing hairs along this object. The hair dynamics should react to this motion, of course... but they don't.

    Share this post


    Link to post

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Reply to this topic...

    ×   Pasted as rich text.   Paste as plain text instead

      Only 75 emoji are allowed.

    ×   Your link has been automatically embedded.   Display as a link instead

    ×   Your previous content has been restored.   Clear editor

    ×   You cannot paste images directly. Upload or insert images from URL.

    Sign in to follow this  

    • Recently Browsing   0 members

      No registered users viewing this page.

    Latest Topics

    Latest Comments

    ×
    ×
    • Create New...