Houdini Tutorial: Vellum Wires

Hi everyone! I have seen a lot of this type of animation on social media with wires and tangled animations. so I have decided to make a simple and fast tutorial to explain one way to achieve this animation with vellum.
Hope you enjoy this one!
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[@colb0123]

Thanks! super straight forward and easy to follow!

[@Xan____FX]

I loved it!! Thanks!!

[@seanrobertson7122]

Here from Reddit, can't believe I hadn't found your channel yet. Good stuff.

[@jessepinkmeng1556]

thanks so much!

[@jessepinkmeng1556]

Check out sweep node rather than polywire. Just connect the first input where you would normally pipe polywire and set the "Surface Shape" parameter to "round tube"

[@pulptubenetwork8862]

Thx dude

[@lunenzalez]

Just wondering for the points that needs to be pinned: why do all the grouping by bounding box and then use relative parameter for the top points when you can create the groups earlier - the bottom right after the circle node, and the top - after the transform node. That way the pin points will always be the one created. I guess if the starting geo is 3D shape then the bounding box makes more sense, but for 2D - looks like unnecessary steps. Or am I missing some greater rule and my idea will show error in some case?

[@chrmez]

Hi! Beginner here. Thank you for your tutorial. I was just wondering: why not just use the circle(s) you created for the string points to pin it rather than add the tubes? And then just pin the points in the Vellum Hair instead of adding that extra Vellum Constraint? It seems to give me the same results but maybe I am wrong?

[@jamdva8176]

Is this useful for simulation with rope connected to one object and moving the other?

[@thelastdev]

Any tutorials on rendering using redshift renderer?

[@sunbok.]

🔥🔥🔥🔥

[@goazu]

Thank you for this, I am stuck when you attached the constrains, when I try and add the groups as you do on the arrow down, I have a message of (no entries) can I confirm that you are typing $OS?

[@DoxiaStudio]

when i put $OS it means the im using the name of the node, in that case the name of the group will be the same name as the node. check the type of groups you are using, it needs to be a point group.

[@imzbugni]

This is so helpful! I’ve been trying to achieve this effect for a while. One more thing I would be interested to know- is it possible to assign each wire a material randomly to add some variety?

[@DoxiaStudio]

you can add parameters or group each primitive (lines). with that you can assign different materials to each line. you can do this before the vellum. not sure if you can do after the vellum but can work too, not 100% sure.

[@tom.konxompax]

there's a technique used here for more random start points - kzbin.info/www/bejne/b5Koh3ygmb6WjsU

[@ajcgi]

Why choose first order as you do around the 16min point? Is it to force motion to be more damped?

[@DoxiaStudio]

to be honest I was trying to get better results so I checked the first order, because on the docs it says "In any case, if collisions are detected the system will fall back to first rder to avoid excessive bouncing."

[@Tyler-zb6ec]

Is there any way to make it so the geometry of the polywires doesn't overlap? Right now mine are bleeding into one another

[@DoxiaStudio]

increase the substeps or the collision iteration. And maybe you need to change the pscale of the points in the wires.

[@milosgalovic5583]

what is the difference between hair and string?

[@jordanobruno4973]

entagma content)

[@DoxiaStudio]

what do you mean? :)

[@jordanobruno4973]

@@DoxiaStudio Vellum 101 - pt. 10: Twisted Wires __entagma.com/vellum-101-pt-10-twisted-wires/

[@DoxiaStudio]

Entagma have a similar tutorial? Awesome! I am not their Patron so I don't know how they explained this. To be on Patreon, it might be more complex and with more knowledge. It is normal for content creators to create similar tutorials tho once in a while.

[@jordanobruno4973]

@@DoxiaStudio cool :)

[@seanrobertson7122]

​@@jordanobruno4973 Thanks for that link didn't realize there was hidden Entagma content

[@enotbert]

Why quality is 360p only?

[@DoxiaStudio]

you have to wait a little. you can refresh, it is 1080p now :) youtube takes a little bit of time to add the HD and FHD versions