[SIGGRAPH ASIA 2017] Conformation Constraints for Efficient Viscoelastic Fluid Simulation

Conformation Constraints for Efficient Viscoelastic Fluid Simulation.
Héctor Barreiro, Ignacio García-Fernández, Iván Alduán, Miguel A. Otaduy ACM Trans. on Graphics (Proc. of ACM SIGGRAPH Asia), Volume 36, Number 6, page 221.1--221.11 - 2017
Paper information: links.uv.es/nOn...
ABSTRACT:
The simulation of high viscoelasticity poses important computational challenges. One is the difficulty to robustly measure strain and its derivatives in a medium without permanent structure. Another is the high stiffness of the governing differential equations. Solutions that tackle these challenges exist, but they are computationally slow. We propose a constraint-based model of viscoelasticity that enables efficient simulation of highly viscous and viscoelastic phenomena. Our model reformulates, in a constraint-based fashion, a constitutive model of viscoelasticity for polymeric fluids, which defines simple governing equations for a conformation tensor. The model can represent a diverse palette of materials, spanning elastoplastic, highly viscous, and inviscid liquid behaviors. In addition, we have designed a constrained dynamics solver that extends the position-based dynamics method to handle efficiently both position-based and velocity-based constraints. We show results that range from interactive simulation of viscoelastic effects to large-scale simulation of high viscosity with competitive performance.

[@AlanStagner]

Me: "Haha wow this is pretty neat even though it's probably meant for render farms"
"Oh wow it's actually real time!"
"wait"
"WAIT I RECOGNIZE THOSE UI SLIDERS"
"HOLY SHIT THAT'S UNITY"

[@KirillBerezin]

3:30 i think we all know how he moves that mouse. Im just inspired how precise he is with his pointer.

[@vexaar]

it took way too long for me to figure out what you meant.. lmao

[@cold_ultra]

@@vexaar I only figured it in the third time i watched the video...

[@user-pz3fc8yc9m]

What do you mean????

[@knownas2017]

If you look at the wires, you can clearly see it's someone else...

[@GretgorPooper]

I laughed out loud at the falling armadillo part.

[@CorpseTongji]

HEY UHH RELEASE THE VIRTUAL GOO SIMULATOR ALREADY

[@ryanekapanjisuhartanto7167]

3:30 I'm still waiting till the day he smashes the liquid

[@thatjokerperson7062]

my computer dropped frames just from watching this

[@hobgoblin8038]

Truly incredible.
Just watch those armadillos fall.
Speechless.

[@MrSaemichlaus]

Free online games in my generation: Dragging image sprites of burger toppings onto a burger bun
Free online games of future generations: Squirting icecream and chocolate sauce into a cone and wiping up spills

[@JohnSmith-kc6ov]

Looking at the real time things, seems like you need to work on making the fluid "stick" to stuff. For instance, when the bowl moves away, you'd expect some liquid to be pulled along, but instead it slides off. Otherwise, this is really good. The honey one looks indistinguishable from real life. As a wise man likes to say, "2 more papers down the line and this will be even better"

[@MrSaemichlaus]

We've probably watched fake food advertisements and didn't realize.

[@heyfl0o]

2:55 : shut up and take my money !

[@lemon-io5zj]

3:09 TUBBY CUSTARD

[@BraixenKartzem]

2:51 We need these kind of things in VR games

[@user-gw6hd5il4g]

Is there any open-src implementation？I met some troubles...

[@mistymysticsailboat]

The return of the armadillos.

[@skyr8449]

Could you guys ever make an add-on for unreal engine or a 3d animation software for this?

[@ignaciogrcia]

Hi! Thanks for the interest.
The model is included in Dyverso 10. It is a solver developed by NextLimit, who have participated in the development of the method.
You'll see some videos in the sections "Viscous" and "Viscoelastic"
www.nextlimit.com/realflow/latest-release/

[@zergidrom4572]

why gravity is so small ?

[@OrangeC7]

Oh no now I'm hungry

[@SofaFramework]

Congratulations for this great work! we would be pleased to see such scientific achievements implemented in our open-source platform SOFA (www.sofa-framework.org) under your own license. If you need any information or support for this, please do not hesitate to contact us !

[@bunnycraft974]

2:09 *hippo?*

[@pneuma1387]

i cant even understand what the title means

[@EBTS-3]

Why the realistic FOOD ? WHYY ??? But overall the quality of realism is rediculous. I wanted the guy using his hands to be Way more interactive with this literal virtual substance

[@DavidsUternal]

Who wants a vr ice cream game where you do what he did in that one thing

[@saggre]

Github?

[@ignaciogrcia]

nop. It was integrated in RealFLow...

[@niko1773]

I don't care what any of that's made of I want to eat it all

[@haroldinho420]

yum

[@davidak_de]

catch pink shit simulator xD