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mknudy
I've been using Houdini for a while, but i'm still learning my way around, so I still have to rely heavily on tutorials and forums…
Anyway, I've been playing around with vellum for a project, where I have shapes and letters floating around and acting like fabric. I'd like to add some more details, especially seams. I come from Cinema, which has the dress-o-matic for such things, where polygons get pinched before the cloth sim.

Does Houdini have something similar that i'm missing?

Does the answer lie with the cloth drape node, or with soft pinning points maybe?

Here are some ref images:
https://imgur.com/a/AIY2D2s [imgur.com]
https://imgur.com/a/G6O2igC [imgur.com]
https://imgur.com/a/tOk0haR [imgur.com]
https://imgur.com/a/wamwsXX [imgur.com]

Any help or point in the right direction would be much appreciated!
WalterSullivan
Are you serious ignoring such question ?? you are not autodesk right ?
+1 for:
Are vellum able to do such seams ?

Take a look at another great example:
asm
WalterSullivan
Are you serious ignoring such question ?? you are not autodesk right ?
+1 for:
Are vellum able to do such seams ?

Yes, it is!
WalterSullivan
asm
WalterSullivan
Are you serious ignoring such question ?? you are not autodesk right ?
+1 for:
Are vellum able to do such seams ?

Yes, it is!

“yes” is not an answer … with same success you could say “maybe”
I found no solution for that either like mknudy says.
do you see that enormous amount of wrinkles made by marvelous designer ?
and how you going to do that? with vellum constraints ? how to animate/simulate it
will it work ?
asm
WalterSullivan
asm
WalterSullivan
Are you serious ignoring such question ?? you are not autodesk right ?
+1 for:
Are vellum able to do such seams ?

Yes, it is!

“yes” is not an answer … with same success you could say “maybe”
I found no solution for that either like mknudy says.
do you see that enormous amount of wrinkles made by marvelous designer ?
and how you going to do that? with vellum constraints ? how to animate/simulate it
will it work ?
I just don't see why it shouldn't. OP himself is suggesting some routes of exploration. How close did you get? I'd be happy to have a look at your scenes if you want. (I'm no expert though!)
WalterSullivan
“I just don't see why it shouldn't.” that explains a lot from your position.
I see you have planty of free time , stop flooding that topic if you don't know how exactly
yes , I was dreaming you looked into my scenes judging what is correct and what is not
may someone post who knows for sure, it's possible or not ?
if yes, how ? I see no ways to do that , maybe by writing hell of a vex code but it's not a solution…
asm
WalterSullivan
“I just don't see why it shouldn't.” that explains a lot from your position.
I see you have planty of free time , stop flooding that topic if you don't know how exactly
yes , I was dreaming you looked into my scenes judging what is correct and what is not
may someone post who knows for sure, it's possible or not ?
if yes, how ? I see no ways to do that , maybe by writing hell of a vex code but it's not a solution…
Just trying to help man!

If you look at the picture again you'll notice it's just one row of “pillows” copied over and over. Makes it a little more tangible.
I'd start by testing the balloon shelf tool, pin it in a way that would create wrinkles, add some forces, maybe some attribute maps to control rest lengths etc.
Or maybe a FEM or tetrahedral soft body is better, probably easier to preserve volume. Or you could go all in and embed everything in force fields.
WalterSullivan
asm
WalterSullivan
“I just don't see why it shouldn't.” that explains a lot from your position.
I see you have planty of free time , stop flooding that topic if you don't know how exactly
yes , I was dreaming you looked into my scenes judging what is correct and what is not
may someone post who knows for sure, it's possible or not ?
if yes, how ? I see no ways to do that , maybe by writing hell of a vex code but it's not a solution…
Just trying to help man!

If you look at the picture again you'll notice it's just one row of “pillows” copied over and over. Makes it a little more tangible.

I'd start by using the balloon shelf tool. Then pin it in a way that would create wrinkles. If needed, create attribute maps to control @attractionweight, mass, and rest length. Maybe add another glue constraint.

Or if I needed it more fancy, try to add forces with a smoke solver and do a more proper simulation.

they are not copied over and over again , it's a tube that is simulated with seams
not copying over and over again
I thought vellum would substitude marvelous designer at least on some level
now it appears that you need to write code and make some difficult stuff to achieve simple wrinkles on massive object

need to stitch cloth on metalic object create seams on it and bump them with pressure forse
it's not helping while we have no answer it is possible or not

on the other hand possible is everything because houdini can do that , but how how much efforts we need to put into it
week , month with vellum ?
I would say it's even possible in sketchup but you can imagine how many time it will take to do
HowardM
Mate, it is a copy, in plain sight.

Looks like an image map used to create wrinkles, if it was nCloth, easy.

I am sure it is possible in Vellum, maybe not as easy.


Stop complaining.
BabaJ
Yea…along the row it is unique and for that the question is valid about whether it's easy to get the creases with vellum as such.

But each row is a duplicate as HowardM shows.

So, most of the ‘work’ would be for only one row.
HowardM
Nothing in H is easy! :p

Have you watched any of the Vellum masterclasses? They go into details about how to use constraints, and other attrs to control vellum.

One way would be to use something like this to control other attributes like glue strength on constraints or stiffness and rest length. All of these can be controlled to make wrinkles. So yes you can use an image sequence if you wanted.

https://forums.odforce.net/topic/41755-vellum-use-cd-attribute-to-animate-rest-length/?do=findComment&comment=199731 [forums.odforce.net]

Here are a few hacked together samples using an image seq to shape things.
WalterSullivan
thanks for answers , I was just wondering if such wrinkles are possible at all.
I'm not a vellum pro but in same time never seen such things there.
FEM sometimes looks more like that rather than vellum …
But in cloth simulation being able to do that kind of stuff is very important
if making such thing in marvelous designer is 100 times easier than in houdini than what is the reason of houdinis vellum at all.

P.S.

best and more attractive way to do that would be just making a mesh and possitioning a seams on it , many many of them , like in MD (you can create line on cloth and tell MD that it's a seam , that's it)
after that you typing a pressure value and seams are making nice wrinkles. I assume it's not possible in vellum.
HowardM
Stop complaining!

Watch the Vellum Masterclass videos! You can select points, select edges, draw, paint, whatever! You can do everything fast and easy or complex too.
mknudy
Lol, what did I start here? Didn't see the replies until now.

@HowardM - I also saw that thread, and have been playing with it. Will also be combing over the masterclasses again. Thank you!

Will update as I go along…
WalterSullivan
HowardM
Stop complaining!

Watch the Vellum Masterclass videos! You can select points, select edges, draw, paint, whatever! You can do everything fast and easy or complex too.

)) stop complaining and watch vellum masterclasses , I will believe you ok .
I'l be back coz I really need achieve that results in H .

and while @mknudy is investigating how to bunch cloth like that above , you can watch that video
stop complaining… [www.youtube.com]
tamte
just a quick example
WalterSullivan
Thank you Tomas ))
Now I believe in Houdini, again.
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