Unlock Vellum's Power: Controlled Inflation Techniques in Houdini

Hey everyone,
Welcome to another exciting Houdini tutorial! In this video, we’ll dive into the world of inflating objects using Vellum balloon simulations in SideFX Houdini. I'll show you how to use a falloff to control exactly where the inflation happens, giving you precise and stunning results.
What you'll learn:
- Setting up Vellum balloon simulations in Houdini
- Using MOPs spread falloff to control inflation areas
- Advanced techniques for realistic 3D effects
- Tips and tricks for perfecting your simulations
Content:
00:00 Intro & Overview
01:44 Model Preparation
11:33 Creating an inflation attribute using MOPs spread falloff
16:37 Set up a Vellum Inflation Simulation
23:30 Create a "stopped" attribute to control the inflation
29:53 Adding creases to the simulation
39:30 Refining the sim
41:50 Final tweaks & result
43:40 Outro
Don’t Forget:
- Subscribe: Make sure to subscribe to my channel and hit the notification bell so you never miss a new tutorial: / @graphicinmotion
- Support on Patreon: Love my content? Support me on Patreon here for exclusive content: / graphicinmotion
- More Tutorials: Check out more Houdini tutorials and in-depth courses on my website here: www.graphicinmotion.com/
I hope you find this tutorial helpful and inspiring for your projects. If you have any questions or need further assistance, feel free to leave a comment below. I’m always here to help. Happy creating!
Best,
Roland
Tutorial Links:
Project File Download: / 107724150
Chair Model: sketchfab.com/3d-models/muran...
MOPs: www.motionoperators.com/
Keywords
Vellum Houdini tutorial, 3D object inflation, SideFX Houdini Vellum, balloon simulation Houdini, controlled inflation falloff, Houdini Vellum techniques, realistic 3D effects, advanced Houdini simulation, precision 3D inflation, Houdini falloff control, Vellum balloon setup, 3D artist Houdini tips, Houdini simulation tutorial, falloff in Vellum, Houdini Vellum guide, controlled balloon inflation, SideFX Houdini tutorial, 3D Vellum effects, Houdini balloon effects, Vellum inflation control.
Weblinks
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[@3rdDim3nsn3D]

13 years and he didn't hit the 100K subs!? People help this man! His content is super cool and very well teached! Thank you Roland for all this Years of goodness 🙏☺️

[@graphicINmotion]

Thank you so much 🙌😄

[@3rdDim3nsn3D]

@@graphicINmotion you're welcome buddy 🙏

[@R1PPA-C]

I see you have a Maschine Studio behind you there!! I'm also a Maschine / Kontakt / Cubase user!! I'm just about to make the transition from max to houdini and looking for tutorials, mainly on particle physics and fluid sims but mainly geared towards making visualisations for my music... if you have any tutorials which are geared or could be geared to react to audio I'd be more than grateful as I have a lot of learning and adjusting ahead of me. Subbed :)

[@pawelczar]

OMG you tutorials are great and its for free as well, which in Houdini universe is so rare. You definitely deserve more recognition and thank you for your work you doing here :). And I hope for more ;)

[@graphicINmotion]

Thanks Pawel, I really appreciate it! 👍

[@frigbychilwether]

Hi, thanks for this. This is a great technique, I would normally try using a vellum constraint property in the solver and then bring in the mops falloff and use that to adjust the restscale or restlength - the problem I always have is finding the exact settings to get the inflation to work - lots of frustration and retries when it doesn't inflate the way I want. Whereas this stopped method means can get the look of the inflation first just by adjusting settings in the cloth and pressure then use the stopped animation to animate it coming on.

[@graphicINmotion]

Additionally I often animate the restscale of the pressure in the beginning of the inflation transition using a constraint properties for even more control.

[@AshleyGlover]

This is a fantastic tutorial, thank you for sharing. I was wondering what is the alterative setup for if I was unable to install MOPs due to strong IT setup?

[@graphicINmotion]

Thank you! You could use the "pyro source spread" node for example. You need to group a few starting points. Create a temperature attribute with a value of 1on these points. Then set up the source spread. You can then use the temperature attribute exactly as I use my "activate" attribute.

[@AshleyGlover]

@@graphicINmotion damn thank you for getting back to me so quickly, great advice thank you.

[@mrsidi87]

Love this!!!!

[@graphicINmotion]

Many thanks!

[@iSam3000]

Awesome

[@graphicINmotion]

Thanks!

[@Bag99Rom]

Like! subscribed!

[@graphicINmotion]

Thanks!

[@philippwelsing9108]

Maybe helpful: Instead of painting the attribute all over again, I just did Undo until edge was back and used an Attribute Rename to name it restscale. Super quick.

[@graphicINmotion]

Thanks! That’s the way!

[@philippwelsing9108]

Finally. a new one! Thank you, Roland!

[@graphicINmotion]

You are welcome!

[@IronMan-yg4qw]

NICE.

[@graphicINmotion]

Thanks!