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Hammer a nail into a tree, and it will get stuck. So why doesn't the same thing happen to the sharp beaks of woodpeckers? Scientists may finally have the answer. In a 2021 study, researchers took high-speed videos of two black woodpeckers pecking away at hardwood trunks in zoos...

73,355 просмотров • 5 месяцев назад •via X (Twitter)

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This guy built a visual scanner that reads 468 points on his face and 42 points on his hands from a regular webcam and turns them into a cloud of thousands of particles right between his palms. Inside, MediaPipe and TouchDesigner are linked: the first captures hands and face from the webcam with high accuracy, the second turns those coordinates into a live plane and feeds it into a POP system that instantly generates a swarm of particles in the shape of a head. No studio, no render farmer, no VR headset. Just a laptop, a webcam, and 1 TouchDesigner session. And traditional VJ studios keep teams of 5 people on a setup with lighting, custom hardware, and commercial plugins, while his expenses are only a TouchDesigner subscription and a regular USB camera. One laptop runs MediaPipe and TouchDesigner simultaneously, holds the camera stream at 60 FPS without drops, and in parallel processes 468 face points + 21 points on each hand. The camera captures frame after frame, MediaPipe in real time sends TouchDesigner the finger coordinates and face geometry, and the POP operator inside the engine translates those numbers into thousands of particle points with colors from bright pink to gold. This setup immediately defines the role of the tool and the limits of its autonomy. It knows where the fingertips are at every moment of the frame. It knows how to read the face geometry at any angle to the camera. It knows how to draw a swarm of particles between them with the right color and contour. → MediaPipe pulls 468 points from the face and 21 points from each hand, 60 times per second → TouchDesigner receives those coordinates, builds a virtual rectangle between the fingertips, and feeds it into the POP system → POP generates thousands of particle points in the shape of a head, coloring them in a gradient from bright pink to gold → The HUD layer adds green corners and a blue neon frame, styling the image like an AR interface → All layers assemble into 1 real-time frame that projects back onto the video in the camera window → The final image is recorded to a file or broadcast to a projector for a live installation And only when the guy spreads his hands wider does the plane between the palms stretch; brings them together, it narrows. Otherwise the system runs on its own. And when he moves from his home room to a concert hall, the same laptop with the same webcam launches the same TouchDesigner session in just 5 minutes, without reconfiguration, without a new team, and without a single line of new code. In his work setup there is no studio of his own and no team for assembly. On the desk sits a laptop with a webcam, on top run MediaPipe and TouchDesigner with POP operators, and the same setup through a USB camera moves to any concert without a new configuration. Out of everything I have seen this year, this is the cleanest Creative Coding setup on 1 laptop: 0 render farms, 0 studio lighting, and between them 3 libraries, thousands of particle points, and 1 webcam.

Blaze

38,242 просмотров • 2 месяцев назад

People do this kind of thing when they feel they are experiencing reality at a high frame rate. It does not feel risky to hold a laptop by a corner if you feel like you have an “agency frame” every half second. It feels risky if you have an “agency frame” every 60 seconds. You’d be betting that a hand you do not have control over for 60 seconds will keep gripping. Our conscious frame rate can vary dramatically throughout the day, and it’s hard to perceive the difference because we can only sample ourselves at our conscious frame rate, we can’t oversample ourselves. People drunk drive because they fail to perceive their slower frame rate. Their frame rate feels normal because it matches their sample rate. But we do get a subtle sense of when we’re “switched on”. Everything seems to go easier, everything feels less risky and more easy to correct. A lot of people toward the autistic side of the spectrum are experiencing reality very granularly with a “high agency frame rate”. This is why their social interactions can seem overly forced and awkward, they can be bad at dancing, etc—because they are exerting conscious control over their body and language at very tight intervals—you get a sense that they are extremely “self aware” and not “letting go”. “Letting go” in the social sense is actually about reducing your agency frame rate. That’s why alcohol is good for socializing and bad for driving. With a reduced agency frame rate our speech and body language feels more natural, less forced. More like we are flowing with the social group mind rather than being an island of constant awkward agency.

Scott Stevenson

1,808,033 просмотров • 6 месяцев назад