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Abstract Spline in houdini?

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I'm a new houdini user from c4d and I want to make this effect MS-Y_MASTER_Lossless-00219.jpg , the animation like 

 07s-09s

and I do this learn from 

, but the animation is not very well.

So can some one help me or give me some tutorial to do this effect

thank you very much

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image.png

I tried to generate lines with POP, and then use Vellum to simulate lines.

But it can't run.

Can someone give some guidance or advice?

The following is the file.

vellum_grow_1.hipnc

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Vellum runs , it's just you made some mistakes ;)

In your vellumhair setup constrain pin i snot set to your pin group .

Then you have to polypath to get only one prim.

More importantly , the pin change from frame to frame as the sop solver in your popnet add new points every frame...

Ok, finally if you drive your contain using the actual transform, you will probably not get close to your reference , play with the scale as well , or maybe restlengh

 

Hope it helps!

________________________________________________________________

Vincent Thomas   (VFX and Art since 1998)
Senior Env and Lighting  artist & Houdini generalist & Creative Concepts

 http://fr.linkedin.com/in/vincentthomas

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For some reasons, I haven’t logged into the forum for a while, thank you for your answer.

And I try to use polypath but Still no work.

Snipaste_2021-08-22_18-45-57.thumb.jpg.f84c00f43bd2ef3e876d52fd2963af35.jpg

I think if it can Divided into two parts, first is Emitted particles connected into a line and secondly is vellum sim.

But I can't put dop into the vellum.

Could someone help me.

Thank you very much

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Thanks you Atom, I have read this tutorial.But it is one circle become abstract spline, I want to let the vellum source grow point.

:P

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