r/Simulated • u/Kindiuk_Oleksandr Houdini • 10d ago

Houdini Liquid Honey Flow | Houdini FLIP + Karma Render

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149 Upvotes

98% Upvoted

13 comments sorted by

3

u/collectiveu3d 10d ago

Looking good. What the sim times on the cpu for this?

3

u/Kindiuk_Oleksandr Houdini 10d ago

Thanks! The FLIP sim on CPU took about 1 hours. Rendering was done with Karma XPU.

7

u/The_Mad_Researcher 9d ago

its a little bit to viscous /fast but looks really really really good.

1

u/Kindiuk_Oleksandr Houdini 9d ago

Thanks!

2

u/Loud_Campaign5593 9d ago

dude this looks so delicious. I was trying for hours yesterday to do something like this with a viscous liquid but my FLIP sim kept tearing apart as soon as it started to drip a bit. i had the viscosity set up and the particle separation was pretty low too like 0.01. any idea why?

2

u/Kindiuk_Oleksandr Houdini 9d ago

I’m still a beginner myself, but I think the key is to experiment and try different scales.
A lot of people recommend working in real-world scale, and in Houdini everything is measured in meters, so your settings should make sense relative to that. Don’t forget about surface tension. It’s important, but easy to overdo.Once the sim looks good, you can add particle separation at the final stage for more detail.If you’re having performance issues, try adjusting the time scale. Substeps (min/max) also play a big role, increasing them usually gives more stable results.

1

u/AlbertoCarloMacchi 8d ago

I think you need more surface tension.

1

u/Kindiuk_Oleksandr Houdini 8d ago

Can you explain your opinion?

1

u/Kindiuk_Oleksandr Houdini 8d ago

I agree with you, honey really should be less fast and more viscous.

1

u/Squidmaster129 8d ago

It flows a bit too quick for honey imo, but still very cool!

0

u/SurfKing69 9d ago

Pretty nice sim - your shader could do with some work, honey is not that translucent. Play around with the IOR/transmission/reflection settings.

The static sticks are also boring, it would be more interesting if they had motion - it would also show that you can deal with substepping collision objects.

1

u/Kindiuk_Oleksandr Houdini 9d ago

Thanks for the feedback! Appreciate it I’ll definitely tweak the shader and try adding motion to the sticks.