Repulsive Shells [video]

Paper: https://www.cs.cmu.edu/~kmcrane/Projects/RepulsiveShells/ind...

The ending was unexpected but great haha. I'm curious if the algo is fast enough for real time or if it's only for renders.

The main example is a dude moving his arms around, and the repulsing shell/surface kind of interpolates through the motion semi smoothly.

I could totally see something like this being useful or interesting for destructive physics in video games. Like, oh, this surface/shell is about to repulse a rocket slamming into it, deform it for this hit. It's be a very different application but there's a kernel of morphology here feels similar ish, of this kind of softbodied-at-a-distance simulation.

Based on other comments though it sounds way too slow to consider for realtime games though.

Is there a standard underwear man model like the teapot? I find it's use hilarious considering there's no reason for model to be in underwear. Same with the butt/hip model at the end. Chefs kiss.

Does this have implications for gaming? I know character models with lots of "accessories" clip into walls and the character body very often, and from what I gathered, the belief was that this was a hard and manual problem to solve.

That triggered my Watership Down childhood PTSD.

I was hoping that this would be about computational geometry (and not, say, about the C shell or Powershell), and I am glad it indeed was.

TL;DR: they are talking about approach to 3D geometry which avoids self-intersection by design, which is something useful for modeling solid bodies.

However, I hope someone makes a video about shells that are hard to use too :)

It was kind of repulsive

"So.. what will the world do with this knowledge?"

"Something something, rule 34."

And here I thought groovysh was a repulsive shell.

Haven't read the paper, but guessing, in the limit, this is simulating the electromagnetic interaction between electron shells of atoms?