A. Peer, M. Ihmsen, J. Cornelis and M. Teschner's SIGGRAPH paper "An Implicit Viscosity Formulation for SPH Fluids," explored techniques for simulating the physics of smoothed-particle hydrodynamics -- solids that melt and squoosh into liquids and slimes. As interesting as the paper is, the video is a showstopper -- never have simulated anthropomorphic armadillo action-figures been so meltfully delightful!
We present a novel implicit formulation for highly viscous fluids
simulated with Smoothed Particle Hydrodynamics SPH. Compared
to explicit methods, our formulation is significantly more efficient
and handles a larger range of viscosities. Differing from existing
implicit formulations, our approach reconstructs the velocity field
from a target velocity gradient. This gradient encodes a desired
shear-rate damping and preserves the velocity divergence that is introduced
by the SPH pressure solver to counteract density deviations.
The target gradient ensures that pressure and viscosity computation
do not interfere. Therefore, only one pressure projection
step is required, which is in contrast to state-of-the-art implicit Eulerian
formulations. While our model differs from true viscosity
in that vorticity diffusion is not encoded in the target gradient, it
nevertheless captures many of the qualitative behaviors of viscous
liquids. Our formulation can easily be incorporated into complex
scenarios with one- and two-way coupled solids and multiple fluid
phases with different densities and viscosities
An Implicit Viscosity Formulation for SPH Fluids [Freiburg]
Keiichi Matsuda created 2016's Hyper-Reality, an amazing, dystopian video about the future of augmented reality; now Matsuda is back with Merger, that plays darkly into the idea that corporations are a form of Slow AI that view humans as inconvenient gut-flora, a truth shot through our collective fears.
My most recent essay film, Visual Disturbances, premiered in the open access journal [in]Transition yesterday. This open access journal features peer reviewed academic video essays and showcases a wide variety of film and media analysis. Visual Disturbances uses some cutting-edge eye tracking visualizations to explore how film audiences both perceive and mis-perceive movies.
Electronic Grenade's "'Computer' Mouse" project fits a fully functional computer into a fully functional, 3D printed mouse; the computer is a Raspberry Pi Zero W, with a teeeny leeetle flip out keyboard and a tiny little itsy bitsy flip-out screen. (via Motherboard)
It’s a rude awakening for that rookie vacationer abroad when they try to plug in their gear for the night. Veteran jet-setters know that outlet shapes can vary wildly from country to country, which necessitates that most boring must-have for any world-traveler: A sackful of clunky power adapters. Awkward problem, elegant solution: The Twist Plus […]
Looking for a career in music behind the boards, either as a music producer or DJ? It’s a good bet that you’re going to be working with Ableton Live. Each new iteration of this powerful workstation gives the user more tools to create, and it’s just as well suited for the task of meticulous track […]
The graveyard of failed startups is littered with concepts that just got lost in translation. At its core, that’s what great front-end design is about: Making an app or website usable, translating its best ideas smoothly to the user. It’s a skill so broad there might be no one book or course that covers it […]