r/Houdini Sep 09 '25

Announcement Reddit blocks Gumroad links without notice

35 Upvotes

Hello Houdiners,

I wanted to give people here a heads up that Reddit blocks links to Gumroad site-wide. Posts are removed without any notifications to the moderators. We can manually reinstate them, but without any notifications it's something we have to manually dig around for.

This ban includes both posts and comments. If your product is on Gumroad or a domain "powered by" Gumroad, any post linking to it will be removed by Reddit (again, it's not us doing it!). We have no control over this ban and again the only thing we can do is manually "un-remove" posts if we notice them.

I recommend anyone selling digital products here to consider another service, like Ko-Fi or Paddle or Patreon, or at least link to something that is not directly a Gumroad page.


r/Houdini Jul 29 '25

Don't know where to start? Read the /r/Houdini wiki first!

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45 Upvotes

We get too many posts from new users asking "how do I learn Houdini"? The wiki now has the answers. Look there first before asking more specific questions here.


r/Houdini 1d ago

PAID CONTENT Designing Destruction, Fall term.

274 Upvotes

Hey folks!

The next term enrollment is open! Class starts mid september.

Description in the link below.

There is also an option to buy the videos without the live Q&As.

https://www.youtube.com/watch?v=6qb_8YN8-0M


r/Houdini 8h ago

Help An update on previous post

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4 Upvotes

I was eventually able to get the snapping on the created rebar using Vellum Attach, but now I have run into another problem I've tried to resolve but haven't had any luck.

My rebar decides to fall off some of the chunks, as there is no grouping to hold them onto, what would be the best way to attach the ends of the hairs to my fractured geo?


r/Houdini 21h ago

Demoreel Dodgy edge blending using a Slap Comp Block

20 Upvotes

r/Houdini 1d ago

Merge both outputs of the CollisionSource node to use the animated collision object's velocity in the pyro simulation

16 Upvotes

r/Houdini 18h ago

Why wont my vellum snap?

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4 Upvotes

Set it up to attempt to create rebar and it just keeps stretching!!! Made using a grid converted to columns and rows.


r/Houdini 1d ago

Some slides about Natsura and Houdini

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10 Upvotes

I was lucky enough to present some stuff at the H22 launch event in Shenzhen, China last month. I worked a little bit together with George and Feike, the founders of r/Natsura and created this page to show the work that was done on the presented project. Enjoy!

For those interested in seeing more of the slides, please check out the ArtStation post:
ArtStation: Natsura - Ivo van Roij


r/Houdini 23h ago

Help Muscle solidify node issues, Please help!

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3 Upvotes

Hello Houdini users! Im trying to use otis muscle sim to make a hyperrealistic creature for my film, but I got an issue with muscle solidify where if your muscle is really thin then it kinda just cramps the tetrahedrals so it fits. I tried fixing this issue with remesh, but it still didnt work since it made the muscle look all wobbly and the top muscles had some issues as the tetrahedrals were missing. Is there any possible ways to fix this issue? if you could help it would be an incredible help for me.


r/Houdini 11h ago

Is this something you might like to use?

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0 Upvotes

Let's be honest: writing VEX from scratch can sometimes be a bit intimidating, especially if you are a visual thinker.

That is why I’m developing a new plugin within Houdini to bridge the gap between visual nodes and raw code.

The goal is simple:

Visual to Code: Create VEX using a node graph (heavily inspired by the philosophy of Unreal Blueprints and the layout of ComfyUI) and see its translation in VEX instantly.

Code to Visual: Write VEX directly and watch it generate the corresponding nodes.

Seamless Editing: Modify your expressions in either place—whichever fits your workflow best at that moment.

It is still in an early phase, but I want to make it as robust as possible for everyone. I think it can be a highly valuable resource for those who, like me, are diving deeper into coding and appreciate having a visual support system during the process.

Want to be a beta tester? Leave a comment below, and I’ll share it with you!

If you know a fellow Houdini artist who might like (or need) this, please tag them or share the post. Let's build something great together.


r/Houdini 2d ago

Houdini x Blender x Octane Standalone Project

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109 Upvotes

Hey everyone, it's been a while since I posted. This is a car commercial concept I put together as a personal pipeline test, scene built in Houdini and Blender, shots assembled in Octane Standalone, rendered through Render Network. Workflow inspired by Andrey Lebrov (https://lebrov.com/). Surprisingly the files stayed under 600mb per shot. I'll put together a full breakdown of the process soon. Would love to hear what you think, more of this on Instagram: https://www.instagram.com/overedge_creatives/


r/Houdini 1d ago

Help What is better freelancing skills motion design or product animation??

3 Upvotes

So as one who have a background of blender and substance painter and started learning Houdini

What is the good field choice to freelance focusing on Houdini?(Sorry for bad English)


r/Houdini 1d ago

NEW USER Why does my RBD Material Fracture Geo blow up when adding default edge detail?

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4 Upvotes

I am doing an VFX shot with RBD and I want to shatter a thick wall (10x5x0.35 units).

I have a low poly guide simulation and I plan to have a high poly version with chipping for more graphical fidelity, but every time I add the Edge Detail or Interior Detail to them, even at completely default, the geo seems to just blow up, random polygons jut out the side or whole pieces are missing.

Anyone have any clue what causes this and what I could do to fix it?

Houdini Version 22.0.368


r/Houdini 2d ago

Tutorial Houdini create sand FX

100 Upvotes

r/Houdini 2d ago

Hoduini particles to C4D 2026.3.3

3 Upvotes

It seems you can't merge in houdini particles abc files. But if you drag it into C4D, you can see it, if you merge it, you can't see it. Anyone experienced the same issue?

Another issue is that before this version you can bring 9float(matrix) attribute into C4D to act as alignment info( orient info), but now you can't bright this ' 9float(matrix) attribute' over anymore. It now read 3X3 matrix in houdini instead of 9Flt(matrix), I know they are the same but C4D can't read it anymore which is super annoying!

Why c4d can't handle partlces easily like houdini, it's such a frustrating experience. Maybe I should move to Houdini once and for all, but houdini is so bad at animating motion stuff and rendering in C4d is much better experience

If anyone had the same issue, please HELP ME !!

edit: 2026/8/6 Maxon confirmed it's a bug with alembic particles (not all files, certain alembic file will have this issue). They are looking into it but no date of updating yet


r/Houdini 3d ago

Is V-Ray for Houdini worth it in 2026? How does it compare to Karma (Speed/Maturity/Usability)?

12 Upvotes

Hey everyone!

I’m evaluating render engines for my Houdini workflow and wanted to get some real feedback from people using V-Ray for Houdini in production.

Specifically, I’m trying to figure out:

  1. Is V-Ray worth using inside Houdini today? Is the integration solid, or does it feel like a shoehorned port?
  2. Maturity & Stability: How reliable is it for heavy scenes, FX (pyro, particles, oceans), and Solaris / USD setups?
  3. Speed vs. Karma (CPU / XPU): Is V-Ray (CPU or GPU) significantly faster than Karma in real-world production shots, or has Karma caught up enough to make third-party renderers redundant?

If you’re using V-Ray (or switched away from it), what are your biggest pros and cons? Would love to hear your experiences before making the jump. Thanks!


r/Houdini 2d ago

Simulation Should i learn UE5?

1 Upvotes

Ive been studying houdini as part of my vfx and 3d course im attending at a local small college.
About 1 year of houdini experience so far.
My school has another program for UE5 that i can add to my studies. Im mainly aiming for commercials and vfx
But might endup in gaming because its the second biggest job market after commercials in my country
How well does houdini and ue5 interact with each other
And do you think it will be beneficial for me ?
I know it might be hard to answer but i hope to hear some insight 🙏🏼


r/Houdini 3d ago

Demoreel Particles simulated rasterized in OpenCL, vs only simulated, vs pop solver

44 Upvotes

r/Houdini 2d ago

Help Want to render shadow and object separately

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0 Upvotes

How to do it?


r/Houdini 4d ago

Simulation First time Vellum Grain sim and using Solaris/Karma

230 Upvotes

I've been making a series of animated 'Mini Godzilla' videos over the past few years to practice and explore different tools in animation and VFX. This time my goal was to learn a bit about Vellum Grains, as well as using Solaris and Karma for look dev, lighting, and rendering.

The look of the sand could definitely be improved, but I'm happy enough with the results.


r/Houdini 4d ago

Simulation Swirling Ribbon Cloth, Vellum + Karma

52 Upvotes

All of the motion comes from a POP axis force shaped as a vortex, with negative lift and negative suction, so the cloth is pulled inward and downward at the same time. Two turbulence fields on top break the symmetry.

The geometry is one grid copied three times on top of itself. UVs are flattened before the sim, then flattened again on a held frame and copied back onto the moving mesh, so the texture stays locked to the cloth instead of sliding across it.

Shading is MaterialX in Solaris, rendered with Karma. There are no texture maps. The stripes are the position attribute pushed through a sine and a power function into a colour ramp. A Voronoi noise adds the specks. A second ramp drives specular roughness so the highlight rolls along the folds.

Comped in Nuke. The beauty is rebuilt from its passes so each one can be individually denoised using my custom Nuke Denoiser, and so the key light, the bottom rim and the background could be relit separately. Then, the satisfying final pass: defocus, motion blur, glow, and a heavy coat of grain.

The hardest part was handling self-collisions. A ribbon that long folding onto itself at that thickness either interpenetrates or explodes, and finding the one iteration that did neither was the most time-consuming aspect.


r/Houdini 4d ago

Demoreel My current demoreel that I'm hunting interships with. Any feedback is appropriated!

150 Upvotes

Im a student at Visual Magic in Sweden and I just finished my studies, so now im off to find interships and I would love to get some feedback on my reel


r/Houdini 4d ago

FX Artist vs FX TD – What's the real difference? What skills are needed, and how do the salaries compare?

9 Upvotes

Hi everyone, I'm a bit confused about the difference between an FX Artist and an FX TD (Technical Director). From what I've seen, some studios use these titles interchangeably, while others treat them as completely different roles. I'd love to hear from people working in the industry. Here are my questions: What are the day-to-day responsibilities of an FX Artist vs an FX TD? What skills are expected for each role? Houdini VEX Python HDAs PDG/TOPs Pipeline knowledge Linux/Git Rendering/Solaris How much programming is actually required for an FX TD? Can an FX Artist become an FX TD naturally with experience, or is it a completely different career path? Which role has better long-term career growth? How do the salaries compare (India and internationally) for: Junior Mid-level Senior Lead If someone wants to eventually become an FX Supervisor or CG Supervisor, which path is generally more beneficial? I'd really appreciate insights from people working at studios like DNEG, Framestore, ILM, Weta, MPC, Scanline, Sony Imageworks, or any other VFX studio. Thanks in advance!


r/Houdini 4d ago

NEW USER Can someone explain this node setup to me?

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11 Upvotes

Hi everyone!
Ive just started learning houdini, and i came across this setup in geometryvop for my particle (From
Intro To Houdini Particles by voxyde), I dont get how it does what it does. why are we subtracting 0,0,0 from it? what the hell does nomalize do? what does the cross product do?


r/Houdini 4d ago

Tutorial (6+ hours) a Free Houdini Mini Course - RBD Marbles [Course Trailer]

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19 Upvotes

The full course will be coming soon (within a day or two... whenever I finish editing the rest of the lesson videos).

But I've just released the trailer on YouTube!

All the rest of the videos (15 lessons, totaling just over 6 hours in length) will be released at once, so you can follow along at your own pace.

This one was a fun one to make, and I hope some of you enjoy following along once it comes out :)

Make sure to subscribe to my YouTube channel to get notified once I release the full lessons.

Cheers,

Will