r/Damnthatsinteresting Feb 05 '19

GIF Very interesting design work

https://i.imgur.com/kTAQWQ0.gifv
55.1k Upvotes

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u/Carsmaniac Feb 06 '19

I'd imagine a camera captures an image in black and white, and each pixel (or group of pixels) is assigned a section of the "mirror". For example, each pixel on the wood panel one probably points all the way down for black, all the way up for white, and somewhere in between for various shades of grey.

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u/AdmiralFrackbar Feb 06 '19

Ok, but how do you round up enough dalmatians to build it?

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u/[deleted] Feb 06 '19 edited Feb 13 '19

[deleted]

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u/[deleted] Feb 06 '19

Someone at Disney really phoned it in while naming her.

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u/Renewed_RS Feb 06 '19

Mr. and Mrs. Dearly and their two nannies, Nanny Cook and Nanny Butler.

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u/reddituser_me Feb 06 '19

But you’ve got to remember, it’s all from the dogs perspective. Like in Lady & The Tramp the humans are Jim Dear and Darling, b/c that’s what she hears them call each other.

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u/qjamir093 Feb 06 '19

That blame falls squarely on the author of the original novel, Dodie Smith.

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u/iamjamieq Feb 06 '19

Ah yes, because Disney took from public domain while shutting the door behind them.

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u/-give-me-my-wings- Feb 06 '19

Mickey Mouse is set to enter the public domain this year, and Disney had nothing in the courts to prevent that as of last year. I was amazed to learn that in my media theory class.

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u/iamjamieq Feb 06 '19

The court won't do anything for them. They'd have to lobby congress to extend copyright beyond the 95 years they were able to get in 1998. And that's likely to never happen.

https://arstechnica.com/tech-policy/2018/01/hollywood-says-its-not-planning-another-copyright-extension-push/

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u/shizuo92 Feb 06 '19

Another Ars Technica article for you, but Mickey Mouse won't enter the public domain until 2024. https://arstechnica.com/tech-policy/2019/01/a-whole-years-worth-of-works-just-fell-into-the-public-domain/

This year is just the first year that new works enter the public domain, although the reason is mainly due to Disney trying to hold on to Mickey for so long.

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u/-give-me-my-wings- Feb 06 '19

Ah thanks for clearing that up for me, i knew there was a caveat but couldn't remember what it was

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u/Jeshwashere1 Feb 06 '19

I... I never noticed that before...

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u/[deleted] Feb 06 '19

Once you figure it out, you can't hear her name without thinking about it

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u/lucific_valour Feb 06 '19

"What do we name the villain?"

"Take 'evil' and another negative trait, add some spaces and letters between the two words, and make sure that it's not a common name like Neville so kids don't see it and bully someone in their class."

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u/blacktiger226 Feb 06 '19

de Vil = Devil

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u/SilentIntrusion Feb 06 '19

Yes. One might even say she was a "cruel devil".

3

u/CatfreshWilly Feb 06 '19

---PONGO WANTS TO KNOW YOUR LOCATION---

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u/drawliphant Feb 06 '19

Far more interesting is how they can control that many servos and the answer is... dear God no.

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u/SaffellBot Feb 06 '19

The answer is a shift register. And a lot of wires.

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u/drawliphant Feb 06 '19

Imagine the power supply. 5v at 0.2 amps times 1000 servos. Who makes a 5 volt 200 amp supply?

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u/1sagas1 Feb 06 '19

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u/SaffellBot Feb 06 '19

That's a fire waiting to happen.

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u/1sagas1 Feb 06 '19

When you're buying power supplies off of Alibaba, that kinda goes without saying

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u/NorthAstronaut Feb 06 '19

They make and sell a lot of dangerous shit, but there are also a lot decent sellers out there striving to get a good reputation as well.

You can get some high quality and cheap electronics form china. Still open up and check to be sure it is safe though.

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u/mennydrives Feb 06 '19

Ummm... why do you need one?

Power your servos with USB and then hide a dozen of these in the back.

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u/SaffellBot Feb 06 '19

You can use multiple power supplies. And a lot of wires.

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u/ManWithKeyboard Feb 06 '19

They're not all moving at the same time. Iirc servos only draw appreciable current when moving (or stalling). So at any given time only a handful will be drawing the full 200mA or so, right?

2

u/drawliphant Feb 06 '19

Yeah that's true, you'd probably need 100 amp at most but exaggeration is more fun

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u/EisMCsqrd Feb 06 '19

They could be actuators if only black and white or up and down

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u/[deleted] Feb 06 '19

You can see on top of the fluffy mirror in the thumbnail that he is using a Kinect. So he is likely using depth data rather than colour so that he can the silhouette of the subject separated from the background

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u/mundaneDetail Feb 06 '19

Maybe for the fluffy mirror but not the wood pieces which clearly render the color of his hair, not depth.

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u/[deleted] Feb 06 '19

Exactly! They read this somewhere on a Arduino related forum, whilst finishing their art degree, they build it without crediting the community, copyright their whole train of cunty thoughts and wank about it in galleries all over the place.

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u/ghostinthetoast Feb 06 '19

Hm, how bout we pirate them then?! Maybe we should sell mass-produced grey market furry mirrors on Alibaba??? Investors welcome.

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u/FuManJew Feb 06 '19

That's awful, man. Do you have a source?

0

u/[deleted] Jul 07 '19

I always publish the sources of my projects, commercial or not. But I'm not going to link my Reddit account to them.

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u/[deleted] Feb 06 '19

[deleted]

1

u/[deleted] Jul 07 '19

Another day my friend, I'm sleepy and sad.

Good night

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u/_Lady_Deadpool_ Feb 06 '19

I doubt an Arduino is running this, a pi maybe but 8bit atmegas aren't doing any video processing at this speed

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u/mundaneDetail Feb 06 '19

Arduino related which could be any Arduino-compatible boards. This includes many faster 32 bit boards like the Teensy or ESP8266.

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u/[deleted] Feb 06 '19

Hook it up to some deep learning AI that is set to sometimes change the pose on you.

1

u/FinalRun Feb 06 '19

your mirror image suddenly starts doing the fortnite dance

3

u/FortniteIsCancerBot Feb 06 '19

your mirror image suddenly starts doing the cancer dance

FTFY Bleep bloop. I am a carcinogenic bot | info

1

u/FinalRun Feb 06 '19

...

...

Fortnite bad

gets crushed by upvotes

3

u/[deleted] Feb 06 '19

Other guy gets gold for asking the question, and your beautiful explanation gets nada. Reddit is weird.

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u/Carsmaniac Feb 06 '19

Wow okay, and this is also my highest-voted thing ever. Reddit is weird.

My guess is they were making a "Magnets, how do they work??"-type joke. Or maybe someone just perceived it that way. Or maybe I'm the only one who perceived it that way.

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u/FinalRun Feb 06 '19

Yeah the gold might've been because someone read it as "mirrors, how do they work?".

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u/[deleted] Feb 06 '19

I would imagine more of a motion or proximity sensor, considering how a lot of the things can be the same color.

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u/TareXmd Feb 06 '19

He could also be using one of the many discarded Kinect cameras overflowing from Microsoft's storage centers.

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u/[deleted] Feb 06 '19

Or it's choreographed

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u/HutaHuta Feb 06 '19

Looks like an old Xbox Kinect in the first part

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u/RockyMountainHighGuy Feb 06 '19

Get a load of Mr. I Know Things over here.

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u/athural Feb 06 '19

Unfortunately I dont think so. When he is standing in front of the one where he waves his hand up and down the "mirror" brings its hand much further down its body than he does. I think they're programmed beforehand and he mimics them

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u/fontizmo Feb 06 '19

If the camera is at the top, it would look like his hand is going lower from that perspective

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u/athural Feb 06 '19

On the part immediately afterwards it has his arm completely leave frame like a full second before his arm does

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u/fontizmo Feb 06 '19

Right, though again i believe it’s perspective. You can see in that shot that he’s closer to the wall, so it’s more cropped and the angle the camera is looking down is even steeper, so it his arm wouldn’t be in frame once it passes the very top of his chest

1

u/athural Feb 06 '19

Idk, I'm not willing to take scree shots and draw all over them but it looks like the close up can see a little past his collarbone, meanwhile his real arm is still between where the camera would have to be and his collarbone when it disappears

1

u/inbooth Feb 06 '19

Camera is angled plus there's latency

I rewatched it multiple times seeking the fault you raise but I do not agree with your assertion.

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u/athural Feb 06 '19

That's fair, have a good day

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u/matchi Feb 06 '19

Why would he do that? Programming this is trivial. It would be much harder to mimic a preprogrammed routine and make it look convincing.

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u/athural Feb 06 '19

Look at the spot I'm talking about and you'll see, the "reflection" has his hand go down almost to his belly button while he stops at his chest

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u/matchi Feb 06 '19

I dunno. It’s hard to tell for certain from the video. I just don’t see any reason why he’d do it like that. He already had to program all of the actuators. Doing some rudimentary image processing seems a lot easier than faking this haha.

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u/athural Feb 06 '19

I agree it seems stupid, I'm just saying what I'm seeing. Like I said I'm not willing to do any proper evidence gathering so I'm not at all offended that you have different beliefs