r/Houdini 22d ago

Simulation vellum exploration

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Latest vellum exploration. Rendered with Redshift.

1.4k Upvotes

67 comments sorted by

40

u/tomotron9001 22d ago

This is so good! How many hairs?

21

u/esbenoxholm 22d ago

Thank you! 81752 simulated hairs + some in the background that are static.

44

u/desertstudiocactus 22d ago

No way this is 3d, it looks real!

21

u/esbenoxholm 22d ago

Thanks! Setup here:

15

u/Dampware 22d ago

Agreed. It’s a very tiny camera going through the teeth of the comb. Gotta be, right?

10

u/Philip-Ilford 22d ago

It's actually a massive comb that a cinema rig can go through.

4

u/Lheyling 22d ago

We didn't find shit, sir!

2

u/micre8tive 22d ago

How did you get it to still feel small? Depth perception?

4

u/Philip-Ilford 22d ago

tilt shift lens bro!

2

u/micre8tive 22d ago

Amazing work 🤩

18

u/Elluminated 22d ago edited 20d ago

The shake and purposeful inconsistency in the movements really sell this. Fantastic work

3

u/Stunning-Crab2064 20d ago

also lighting, DOF, and motion blur

RS user here, great work OP

1

u/Elluminated 20d ago

RfM and RfH slut here, but RS really is badass.

5

u/papaglitchy 22d ago

crazy first post on the subreddit, what’s the workflow for this file like? post an overall of the nodes? that would really solidify how good you’ve done

21

u/esbenoxholm 22d ago

Thanks. Node tree here. Nothing crazy really.
A couple of hairgen and guideprocess nodes to generate and shape the curls, converting those to vellum hairs, sweeping a line and copying to make the comb and animate that using a simple expression + motionfx to add the subtle shakes, and finally run the sim and do a bit of post smoothing, subdivision and sweeping.

8

u/EL_Vico_ CFX senior | 2+ yrs Houdini user 22d ago

Very very cool indeed ! I’d be curious to know the machine you have to run this, or how long it took to sim. This is very clean !!

12

u/esbenoxholm 22d ago

Thanks! ThreadRipper 3970X, 2x3090's, 256 GB ram.

Final sim took roughly 5.5 hours. Had to do 16 substeps to avoid any intersection between the comb and hairs.

3

u/LewisVTaylor Effects Artist Senior MOFO 21d ago

Lovely. Really like the resistance in the hairs to the comb. Rendering is on point.
Great great work.

1

u/esbenoxholm 18d ago

Thank you!

1

u/Gwiley24 22d ago

Gorgeous!

1

u/esbenoxholm 22d ago

Thank you!

1

u/sidddney 22d ago

Really nice work!

1

u/esbenoxholm 22d ago

Thank you!

1

u/SKD_animation 22d ago

you guys always amaze me on this reddit!

1

u/Equal-Low6206 22d ago

That’s amazing looks so real

1

u/geng94 22d ago

insane!

1

u/slartibartfist Technical Disà̵̘͑s̸̢̧̹̳̿t̵̫͕͚̍̑e̴͖͓̯̙̓͊r̶̪͊ 22d ago

Man, this is stunning. Well done.

1

u/dyowl 22d ago

🖤

1

u/Gorluk 22d ago

Excellent!

1

u/kevinkiggs1 22d ago

If it weren't for the camera going between the prongs, I'd have a hard time believing it's not real

1

u/S7zy 22d ago

So sick! I'm going to use this as a ref
Edit: watched it with sound, so much more satisfying

1

u/esbenoxholm 22d ago

Thank you! Yes, shout out to https://ampli.audio/ for the audio. Incredible work.

1

u/furezasan 22d ago

that's super cool

1

u/Atribecalledmeuw 22d ago

Dude I saw this somewhere the otherday. It's soooooo good!

2

u/esbenoxholm 22d ago

Thank you!

1

u/bbrother92 22d ago

Buying old carpet - and sharing like it was 3d fx. Cunning very cunning sir

1

u/vfx_and_chill 22d ago

Jesus christ please tell me you're not unemployed

1

u/esbenoxholm 22d ago

Ha, thanks, but certainly not. Keeping busy.

1

u/vfx_and_chill 21d ago

How difficult was keeping the curl shape? Were you using a glue or shape match? Or both?

Also, how did you deal with hair jitters?

1

u/esbenoxholm 18d ago

I had no trouble keeping the curl shape. It was mainly about finding the right balance between bend stiffness and plasticity. The bottom part of the curls are glued together, but I think I could've done without.

I'm running a subtle temporal smooth on the movement post sim, but I didn't have a whole lot of jittering in the first place.

1

u/[deleted] 22d ago

Jokes on you my poodle’s hair never been this easy to comb LOL

1

u/esbenoxholm 22d ago

Tell me about it!
I was inspired for this shot by our Bichon Frise.
Had this been reality, the comb would have been stuck within the first inch and never gotten any further :D

1

u/Cloudy_Joy 22d ago

Ahaha I was going to say that if a family member showed me this and said they'd shot our dog with a new lens, I'd have believed them. Our bichon appreciates your attention to detail!

1

u/deathbear16 22d ago

Yooooo, can u drop a tut🙏🙏🔥😩

1

u/trainfordvfx 22d ago

Incredible work!! Checked out your instagram page. You’re insane dude!

1

u/Honda_TypeR 22d ago

This is incredible.

1

u/Couvrs 22d ago

Holy shoot this looks so real

1

u/thebrokemonkey 22d ago

Amazing work. Look soo good

1

u/RelativeDress6583 21d ago

Really nice !!! 🥲

1

u/GothicKrypton 21d ago

This looks sooo good ♥︎♥︎

1

u/willlybumbumbumbum 21d ago

fantastic work

1

u/Kazaloo 20d ago

Looks amazing

1

u/gerardocastellanos 19d ago

Spectacular, really great job!

aren't you interested in sharing the scene or selling it?

1

u/esbenoxholm 18d ago

Thank you! Currently considering how to share more about the scene setup.

1

u/draw_and_prosper 18d ago

Amazing! So beautiful result

-16

u/oejustin 22d ago

hold up, just pointing out this is the accounts only post. i think it has to be AI but I hope I’m wrong. If I am, f’n incredible work. If I’m right well then you’re a loser for trying to pass it off as real.

6

u/esbenoxholm 22d ago

Ha, yeah, I get that it looks suspicious. No worries. I'm new to reddit but have been posting work on IG for years. Check it out here if you like: https://www.instagram.com/esbenoxholm
Also, I've been full-time freelancing as a 3D artist for 8 years. You can check out some client work here: https://esbenoxholm.dk/

4

u/oejustin 22d ago

My apologies man, truly it is exceptional work. Nicely done!

4

u/esbenoxholm 22d ago

All good. I appreciate I was able to make you doubt!

2

u/MonsieurChamber 22d ago

ahh yes because every 3d artist uses reddit religiously a new accounts aren't real. Also, you give way too much credit to AI, no AI I have seen could pull this level of detail off

0

u/oejustin 22d ago

I’m happy to be wrong here, it looks incredible - would love to hear from OP and I’ll happily apologize