Jump to content

How to trigger vellum sim using noise?


Recommended Posts

4 hours ago, Librarian said:

@carl45456 check this method and play a little bit .
 

kamenciciVellum.hiplc

Thanks, I tried fiddling with your example and it is a bit too advanced for me. Which part of your set up is using noise to animate vellum? I have a setup where I have noise animating on scattered points. My idea was to use the values given by the noise to decided whether my vellum should inflate or deflate.

My logic was, if noisevalue <0.2 {inflate} else if noisevalue > 0.8 {deflate} but I don't know where to start. I have been approaching it at dops level and I am not sure if that is correct.

Link to comment
Share on other sites

I followed this tutorial from John Lynch on the Houdini channel where he attached a null the the noise at sop level. Then he referenced it in the vellum solver using a vellum constraint property, then added some vex

float scale = fit01(rand(@primnum),0.25, 0.65);
int pt = primpoints(0, @primnum)[0];
float amount = point(2, "amount", pt);
restscale = amount;

After following it all the points in my scene only shrinks :/ 

 

tube.hip

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

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.

×
×
  • Create New...