I was one of the last people at Disney to use the Sodium Vapor light system. It was on "Something Wicked This Way Comes" in 1982 or 3. I was an vfx AC at the studio. The prisim was held under license from Rank. It was a hallowed object. It was kept in a steel box and it was studio policy that 2 AC's had to be with it at all times when it was removed from the storage locker. We both carried it to the stage, then carefully inserted it into the 2-strip camera. It was never left alone on stage, we took turns leaving for lunch, the john, etc. It hadn't been used for years but we had a series of tough matte jobs to shoot so they dusted off the old gear. I was aware I was watching a bit of history. The key was the didymium filter in the prism. That thing has to be around somewhere. Technically, Rank would still own it.

@adamhock8801

Ай бұрын

Wow, thank you for the utterly fascinating info about the wild life that crystal has had.

@slamp3844

Ай бұрын

Woha interesting!

@topio

Ай бұрын

Who is/was Rank?

@panicraptor2837

Ай бұрын

@@topio developed in England by the J. Arthur Rank Organization

@richardemerson8075

Ай бұрын

Super cool story!!

Award for the least clickbait video with the most clickbait title. This is so cool.

@St4rdog

Ай бұрын

Ignored this video in my feed for 6 days because I thought it was clickbait.

@TheBanancer

Ай бұрын

@@St4rdog same

@vintage-radio

Ай бұрын

​@@St4rdogI ignored it because I had smth else to do, and then i forgot this channel existed for 6 days. also, I think the clickbait is working since they almost got 3 mil views in 6 days. Last video that got even close to that was the AOT one 2 months ago that got 2.5 mil

@Ciboullete

Ай бұрын

Fr

@tomsmarkovs1946

Ай бұрын

I avoided this video because I thought it was clearly clickbait. Cristal, forgotten magic?. . sure. :D

Slightly mindblowing that a relatively simple alternative solution like this can be used and thus proves the worth of the process yet the process was dropped. It's so clearly superior.

Props for a big KZread channel that actually marks where their sponsorships are so you don’t feel like you’re being fed valuable information and realize you’re being tricked into advertising.

@zaicol850

Ай бұрын

Tbf a lot of big channels who use chapters do this. But yeah, it is always appreciated

@ralfclearsky4193

Ай бұрын

Sometimes the fact that I developed a nose for such things scares me.

@i.t.y1140

Ай бұрын

You sound like you're new here

@alexmehler6765

16 күн бұрын

sponsor block addon will show you where ads begin and end

@Karaon

16 күн бұрын

@@alexmehler6765 nice

FYI, your sodium lamps should be upsidedown or sideways for longevity. If you have the electrodes on the bottom they'll get dripped on by sodium which will eventually cause the bulb to fail. If used properly LPS bulbs will last pretty much forever. This is a very clever technique. Well done

@BrandanLee

Ай бұрын

G&E Wizard Wisdom.

@robertheinrich2994

Ай бұрын

I remember, they were present pretty much everywhere. tunnels, street lights, etc. they were pretty long lasting and surprisingly efficient. you get just one wavelength, but that with a very high output, illuminating a large area.

@nj1255

Ай бұрын

@@robertheinrich2994 Last time I saw one used outside here in Sweden was when I was a kid in the early 00's. It was in a pedestrian tunnel under a road, and I remember it was always so trippy walking through that tunnel. Everything looked black and white (or rather black and yellow).

@hoon_sol

Ай бұрын

@@robertheinrich2994: Those lights were so warm and comfortable (not thermally, but emotionally), real shame they stopped using them much.

@PJ-oe6eu

Ай бұрын

​@@hoon_sol For me those lights remind me of cold sketchy places, and stinky bathrooms so that "junkies have a harder time finding a vein"

those original 3 prisms are, like, the closest things to ancient magical artifacts that exist. *wisened old sage voice* “This crystal has the power to alter Reality itself, using the light of the dawn”

@michaelmoore7975

Ай бұрын

It was wise not to reveal the arcane practice of _Blackfire._ Blackfire can be accomplished by igniting alcohol while illuminated with low pressure sodium lighting. The normally invisible alcohol flame is pure black....and creepy.

@maverickstclare3756

Ай бұрын

sat on someone's shelf somewhere as "cool crystals"

@Corpomancer

Ай бұрын

Reality is far closer to having ancient artifacts littered all around us, only matters how we look at things like in this case a Room for one colour.

@hulkhatepunybanner

Ай бұрын

*MacGuffins for the next Marvel/Star Wars/Pixar movie.*

@lawrencefrost9063

Ай бұрын

CRINGE ALERT

This is actually incredible and extremely useful, specially for low and mid-budget film productions. This technique severely cuts the amount of work hours necessary in editing, while also giving higher quality results. This can drastically improve the quality of videos and movies at a relatively low cost. Massive props to everyone involved in this project.

@Th1sUsernameIsNotTaken

Ай бұрын

It'd be worth it in high budget too. They could utilize the effort of having to change 400 different settings constantly to make it "perfect" into other portions of the film. CGI would probably be drastically improved in film compared to what it is now.

@christie_brown

Ай бұрын

The only giant limitation I would say is when it comes to shooting outdoors. Earlier in the video, they needed to block the skylight. Like, filming with natural light is already a pain (trust me I’ve been there). But now you have to make sure All of that natural light doesn’t spill into the lighting of both your foreground AND background . It’s basically all the difficulties of controlled green screen lighting times 10

@koiyujo1543

29 күн бұрын

YES DUDE THAT"S WHAT I THOUGHT THIS COULD REVOLUTIONIZE ALL OF FILM PRODUCTION!

@ariDeMon7479

29 күн бұрын

@@christie_brown why would you need to film outdoors if you're replacing the background anyway?

@sophiadebar382

25 күн бұрын

@@christie_brownthe thing is, you only ever film outdoors on a set when you DONT need to replace the background. Everything else is filmed indoors over a green screen. So you wouldn’t need to use this technique outdoors because you’re already getting what you want

Guys this would be such a game changer for beauty commercials! At the beginning of April we were shooting a lot of footage in the back of a car in a tiny space and it was a nightmare putting the green far enough to avoid spills. Production WANTS this to come back! ❤

The ancient dark arts of video compositing... the prophecy has been fulfilled.

@matthewboire6843

Ай бұрын

This is somehow true

@jaimefenger3730

Ай бұрын

Lissan Al... you know the rest

@darosamath

Ай бұрын

That`s exactly how the Lisan Al Gaib would do video compositing

@1zymn1

Ай бұрын

@@darosamath LISAN AL GAIB!

@SameerN23

Ай бұрын

THIS PROPHECY IS HOW THEY ENSLAVE US!

I love how the quest for this forgotten technology involved a search for long lost prisms of which, according to legend, only three have ever existed. If this was the plot of a video game you would call it absolutely unrealistic and uninspired.

@BrandanLee

Ай бұрын

That's how I feel about light field cameras, haha

@kumble2687

Ай бұрын

The legend of Zeldzaam - The invisible cloak

@IIARROWS

Ай бұрын

Yes! Totally! 3 prisms... boring.

@vast634

Ай бұрын

Raiders of the lost Prism.

@uberfu

Ай бұрын

I mean ... think about how much physical property and assets Disney owns. Then think about having to track and catalog the sheer logistics of maintaining data on literally nall of it and somehow not losing anything over the course of 100 years. Yeah, you try not to lose anything. OF COURSE if they'd patented the process - there would be records of how to reproduce the prisms on file at the USPTO. And ironic that they fight tooth and nail over Mickey Mouse copyright variations but were lackadaisical about something like this.

I feel like there has to be at least one cinephile solid state physicist somewhere in the world who has the ability to recreate the original prism with their knowledge. So, wherever he or she is: this is your time to shine!

@WalkerRileyMC

15 күн бұрын

I think the point here is that we don't actually need to. It'd be cool, but with off the shelf parts they were able to replicate it perfectly.

@user-ti9zc1xv2b

22 сағат бұрын

@@WalkerRileyMC theres absolute usecases left, just got budget at netflix for RDing this

Gotta love when Cooridor makes a video that'll be shown in filmmaking classes for decades.

@kneeofjustice9619

2 күн бұрын

And we’re all watching them for free

“Disney would like to know your location” 😂

@Mfdoorway

Ай бұрын

Is Mickey in the room with us right now?

@Tajarim88

Ай бұрын

Especially if you're a minor and on your own.

@635574

Ай бұрын

And probabaly pay a lot to get these made

@foxthroat3410

Ай бұрын

Disney rn tryin' their best on how to sue them 💀💀😂

@ConfusedOctorok

Ай бұрын

DISNEY wishes to DISable your spine.

In just over 12 minutes, I went from zero awareness to thoroughly impressed.

@SamKramer

Ай бұрын

Same. I had no idea I would love this video so much

@TomCruz54321

Ай бұрын

I actually avoided this video because I thought it was gonna be clickbait, but I was wrong. This video is legit. I think that's one of the downsides of clickbait culture, a lot of legit videos are getting avoided because the viewers are weary of their time getting wasted.

@kitschking

Ай бұрын

same here

@Alistair

Ай бұрын

@@TomCruz54321 I think you meant "wary", but impressively, "weary" is also correct here..

@andrewqsmith

Ай бұрын

Yeah reall agree. I never questioned how Mary Poppins was made compared to newer technology. I learned a lot and really impressed with the execution of this. It would be cool to see this used more.

"If I wanted to make a video of a clown wearing all the colors of the rainbow getting married on Mars, I couldn't. That bothers me." New favorite statement unlocked.

@HalogenFEAR

Ай бұрын

I was looking for this comment lol

@Nathan-jt8zt

Ай бұрын

No longer true, though

@theengineer2017

Ай бұрын

@@HalogenFEAR Copied someone already commented this and the dude legit copied the whole thing and added "New favorite statement unlocked."

@HalogenFEAR

Ай бұрын

@@theengineer2017 I guess it's exusable as the text, If I wanted to make a video of a clown wearing all the colors of the rainbow getting married on Mars, I couldn't. That bothers me, is from the video. I heard that statement and almost wrote my own comment about it. It's most likely not a copied comment but good observations none the less.

Every time I'm given a history lesson on early film making, I'm always so amazed by the thought of just how much science and innovation went into these processes.

Just want to point out for people who don't know, Paul Debevec is one of the researchers responsible for a whole bunch of modern VFX techniques, just check out his resume and website, it's like reading through the origin story of most of what we use today.

@HelamanGile

Ай бұрын

Yep he is awesome learned about him In film School

@LuisSierra42

Ай бұрын

He's been in Corridor before

@vke6077

Ай бұрын

what an amazing man

@GoblinAU

Ай бұрын

I spent many hours playing with that Rendering With Natural Light demo back in 1998 and had no idea Paul Debevec was behind it. Great stuff.

@KategariYami

Ай бұрын

Oh, well met Luke

You know, despite the fact that you guys have simply re-created something that was invented more than half of a century ago, it really feels like new ground was broken here for some reason. Kinda gives me that real heart uplifting feeling watching this. Loved it!

@deadplthebadass21

Ай бұрын

Well if you think about it, they did, like they said the other one was hard to recreate and it only had three, this one is easier to recreate, if you ask me I think that's pretty special

@HerbaMachina

Ай бұрын

​@@deadplthebadass21they could have just done a very similar thing to what they did here back then too, the whole custom diffraction crystal was overkill in the first place. It's really just the difference between operating budgets and how far money could really go back then.

@KironX1

Ай бұрын

We still can’t replicate some of the stuff divinci made so…

@thespamman2119

Ай бұрын

​@@KironX1but they already replicate it, just have to share it lol

@JinKee

Ай бұрын

@@deadplthebadass21and it is better because you can use different band pass filters to choose other colors and use lasers to illuminate the backdrop

I'm glad I'm not the only person in the world to realize how utterly advanced Mary Poppins was and wondered, ever since I was little, how they did SUCH a good job on that movie but were never able to replicate it. I was so obsessed with this movie when I was little that I used to draw little chalk pictures on the ground and pretend to jump into them and try (as well as any 6 year old child could) to make my room look like whatever it was that I drew in the picture so my room was then the chalk drawing come to life lol. Still one of my favorite movies to this day. Thank you for bringing me some good memories. And am I wrong is thinking that with all the money, effort and time that would be spent on post, doing it using this method would be more cost effective?

Seeing a lost technique discovered, with the people who know it’s significance and are in a place to use it (not to mention passionate as alll hell about what they do)? Magical

"If I wanted to make a movie about a clown wearing all the colors of the rainbow getting married on Mars, I can't. That bothers me."

@jttech44

Ай бұрын

"And I took that personally"

@XliverXD

Ай бұрын

And. He proceeded to resurrect long lost revolutionary photographic items just to make that huge respects

@vyor8837

Ай бұрын

@@XliverXD Revolutionary... for 60 years ago.

@XliverXD

Ай бұрын

@@vyor8837 but it wasse losttt

@dorugora

Ай бұрын

It sounds like something from Death Stranding.

Someone somewhere has one of the prisms on their desk and don’t even know it. Congrats on rewriting the future of films!

@Aelux5216

Ай бұрын

Using it as a paper weight no doubt

@chilly456

Ай бұрын

I have a tiny one!!!

@ElveeKaye

Ай бұрын

There are glassmakers who could probably make these things. They just have to shop around for them.

@MisakaMikotoDesu

Ай бұрын

More than likely it's in storage at some warehouse for some company that owns the rights to it. I do warehousing for a living and it's incredible how much stuff just gets outright lost, even important stuff. You'd think bigger companies are better at not losing stuff, but the bigger the company the more stuff that gets lost.

@MCXL1140

Ай бұрын

@@ElveeKaye Disney tried for years to replicate the original, and gave up. It's incredibly hard to make a perfect light rejection prism.

It's amazing to think how many great ideas are lost to the specific components. Kudos to Paul for realizing all you really needed was the concept and finding a way to recreate it.

@devinnall2284

13 күн бұрын

My favorite example is something called Fogbank it was a top secret material used to make nukes the problem was it was so top secret they forgot how to make it

You did my favorate thing; you took a problem and literally turned it inside out. This is proof positive that VFX should never disguard the tenons of optics and that old technology is never invaluable technology. Bravo!

This feels like the end of a cycle. They have talked about this prism sooooo many times. I'm happy for them to be able to replicate it, even if the original prism is lost in Disney's vault

@RamDragon32

Ай бұрын

As a guy that was raised around engineers and artists, I'm sure it's sittin on some guy's mantel or computer desk collecting dust with other random knickknacks and the owner having absolutely no idea of its historical significance. it's a pretty glass cube. Or in a vault kicked under a rack somewhere. Sure.

@41nhs

Ай бұрын

Apparently, the actual prism itself is located at The Walt Disney Family Museum in San Francisco on display for all to see, from what I discovered through research.

@allio3459

Ай бұрын

its not lost at disney. its in safe keepings

@mrcydonia

Ай бұрын

@@41nhs But there were two others. Where are they?

@chadsmo

Ай бұрын

@@RamDragon32I feel like you missed a good chance to use the word tchotchke instead knickknack. Next time.

I've read that the quality of the original sodium vapor camera/prism was something of a happy accident, and two attempts to make new ones were not 100% successful. The fact that you could make such a great recreation relatively easily and cheaply is amazing. I do hope the original is not lost. It belongs in a museum.

@RicardoMusch

Ай бұрын

I read this as well! I guess we live in a day and age now where things that took a lot of precision and skill are now just more reachable and less costly to produce :)

@maih600

Ай бұрын

@@RicardoMusch I find it a little funny that they failed to recreate the highly technical filtered beam splitting prism and never considered that they could just filter the outputs separately rather than doing so within the prism, as they did here. Or maybe they did and the trouble was with creating a narrow band filter at exactly 589nm, which would make more sense, and because of laser sciences we just have a more mature understanding of the processes involved.

@OriginalUnjustifier

Ай бұрын

Indiana Jones? That you?

@zteaxon7787

Ай бұрын

​@@maih600The chances are real that these techniques were appropriated by "secret" services and used for propaganda. Deliverately kept from the industry and public.

@pharlock

Ай бұрын

they just used a normal beam splitter then filtered the output of it.

The fact you guys were able to recreate and reutilize an long forgotten, but still extremely effective technique that helped shaped the VFX world is DEFINITELY one HECK of an accomplishment!!! 😁

This is so wild, I can't believe how good it looks. I mean even watching shows like Supernatural and seeing how rough the greenscreen looks in them, really makes you wonder why this hasn't been delved into already. Hopefully studios will start picking up this technique, this is really great work

The idea to use an "off-the-shelf" beam splitter and filters is one of those brilliant ideas where you're like, "why hasn't anyone done this before?"

@SmallSpoonBrigade

Ай бұрын

I'm guessing that there weren't that many people trying. Especially in the digital age when you can mask things based on any channel of the image. There's no inherent reason why you have to use green or blue for the masking, those are just the most commonly used ones.

@Appletank8

Ай бұрын

According to wikipedia, well first off only 3 were made, so if you wanted to use it, you better get in line. Second, it seemed that computers got good enough they were able to composite well enough, and tech advanced towards fixing it better and better. Software, once perfected, can be replicated a functionally infinite amount of times, along with the person who trained on it. A hardware solution needs to be made one at a time, and unless they acquire one for themselves, is probably stuck with the film company.

@filanfyretracker

Ай бұрын

off the shelf filters exist because LPS lamps are often used around observatories for street lighting, the same reason they are used in this effects shot. An extremely specific frequency of light. Meaning it can be filtered without losing what one is looking for.

@VisibleReality

Ай бұрын

@@SmallSpoonBrigade with digital cameras, green is most often used for marking because it is often has a higher quality than red or blue due to how the sensor is designed

@mrblah02251

Ай бұрын

If I understand correctly (which is a big if), the original method uses all of the light and just redirects the sodium line. I think this setup is splitting all of the light and filtering the two halves. The advantage is that you don't need special prisms, but the disadvantage is that you cut your light in half. I don't know if low light is a major problem or not.

For those interested in the original (and often uncredited) people behind the process: Vic Margutti was a key participant in Rank Films travelling matte work- possibly with or under Bryan Langley. Vic left Rank to form a sometimes volatile creative partnership with Les Bowie as Bowie-Margutti Films. In 1956 Margutti was lured back to Pinewood UK to develop the new sodium vapour matte process - which proved very successful and would be adopted Stateside by Ub lwerks and Eustace Lycette at the Disney corporation as their travelling matte methodology of choice for decades.

@biffmercury

Ай бұрын

I read that when presented with the script to THE 3 WORLDS OF GULLIVER (1960), Ray Harryhausen insisted on doing it in England, where he could get access to the sodium vapor process. Even then, Harryhausen didn’t want to fool with the often unreliable blue screen process. He used the process on GULLIVER, THE MYSTERIOUS ISLAND (1961), and JASON AND THE ARGONAUTS (1963). Apparently it was no longer available to him for THE FIRST MEN IN THE MOON (1964), which utilized blue screen. Oddly, the technique was used on Herman Cohen’s KONGA (1961), and about the only impressive thing about that movie (and apparently the VFX person responsible for it, wasn’t credited on it, perhaps by choice). I wonder if it was used on THE CRAWLING EYE (1958).

Satyajit Ray used this technique in his film 'Goopy Gyne Bagha Byne' in 1969. Which is also sodium paper technique to cut out the background. Some brilliant special effects techniques were used in Bengali Oscar winning director Satyajit Ray’s film “Gupi Gayen O Bagha Bayen” (1969). There is a sequence called “Bhuter Nach” means “The dance of the ghost”. In that shot he wanted to show something unusual is happening. So, he wanted a clean black silhouette cut out. But in that time, there was no green screen. So, he used sodium vapour and prism to separate the background and the object, and then placed another background behind the object through double exposure.

What a learning video this is, on the technique, the physics, experimentation, and open-minded thinking. Thank you for posting this.

"One of the coolest, the most high tech things we've ever done." As he's holding a piece of a cardboard box. That made me chuckle.

@janthran

Ай бұрын

cardboard is kind of high tech

@TopatTom

Ай бұрын

THE ALMIGHTY… Cardboard???

@jzero90921

Ай бұрын

idk man cardboard is kind of a miracle. Most things arent shipped in crates or barrels now, instead its cardboard boxes. Obviously some things will still be crated, but the majority of consumer goods are gunna be put in a cardboard box. Its as high tech as we got right now.

@jakewilferd6093

Ай бұрын

@@TopatTom my dad used to tell me one of our greatest achievement's during WW2 was when the Japanese sent us the world's smallest drill bit and we sent it back with a hole drilled through it. sometimes the smallest thing's or thing's we don't think are impressive are the most impressive.

@GarageBandSuperheros

Ай бұрын

As I'm looking into a rabbit hole of cardboard, I'm actually stepping my brain back a bit. Just imagine them: Paper towel tubes, foil tubes, sheets, business cards, cereal boxes, Cracker Boxes, Everything Little Debbies, Birthday cards, Playing Cards, Egg Cartons, Literally anything bought online over 2 pounds in weight, Jigsaw puzzles, Poster Boards, Printer papers, Hardcover Books, Election cards, Testing Punch Cards, Milk Cartons!, Cardboard Furniture?! [which is a thing apparently], 3D Display Models!, School STEAM projects, Cigarette packs, A Oyster Pail for your Chinese Food!, Freaking Juice Boxes, THE FLIPPIN PIZZA BOX! It's everywhere, lol. It haunts me now. :P And pretty much anything modern electronic/technology based comes in a petite little..... CARDBOARD Box

Actually incredible. This has probably got to be in the top 3 if not 1 episode on Corridor.

@rosumparat

Ай бұрын

I was just about to say that.

@leoelliondeux

Ай бұрын

It’s definitely one of the episodes of corridor crew.

@VAKZ23

Ай бұрын

Yes, a fitting word “discovery” yeah its an age old forgotten tech but mannn , they just revived it and now the possibilities are now endless at this point

@TypicalBlox

Ай бұрын

not enough wren brings the ranking down

@ShaakunthK

Ай бұрын

This is probably my favorite non-Vfx artist explains stuff video. Wren's videos just hit different. Primarily because they do what they say. Use visual medium to dumb down things people should have an idea of. I can't imagine being able to share this as someone's first Corridor video, which I can do with Wren's videos. But I can share it to someone curious about old school vfx.

This is an amazing video unpacking a technology that I had never heard of. You explain it beautifully and place it in a wonderful historical context. And your recreation and demos of the old Disney tech are off the chart cool! Thanks for making this video.

I know absolutely nothing at all about film, editing, or anything related to how you make things that are on the TV. I still needed this. It feels like you've revived an ancient seed from an extinct plant to my brain and I'M SO HERE FOR IT

"if you think your rig is janky, they're all janky" gave me so much hope for my rig

@Maddolis

Ай бұрын

Good luck with your janky rig Joel

@bielanski2493

Ай бұрын

If there were such a thing as a "universal rig" we would all rent it like a panaflex.

As someone that studied optics, I can tell you that building the crystal back in the day had to be so hard without modern micro and nanofabrication methods. Losing them probably set movie making back decades. It's so great to see this technique available again.

@mewmew32

Ай бұрын

they weren't lost. elsewhere in this thread someone said one is on display at the Walt Disney museum.

@nicknorris100

Ай бұрын

How do you know it is the real deal​@@mewmew32

@timothyblazer1749

Ай бұрын

In the 60s there were still people who could make custom, precision optics by hand, leftover from WW2. That's likely how those prisms were made, and also why they haven't been made since. It's the same reason we can't make the F1 rocket anymore.

@storiesfromtheabyss9808

Ай бұрын

Instead of micro nanofabrication methods, now you can use...😎Nico nanofabrication methods.

@marcmann100

Ай бұрын

Is it still hard to create a prism like that today? I feel like saying it‘s not possible is the same as saying „we couldn‘t build the pyramids today“

I love the idea of rescuing old tech that is extremely useful, and you guys did an amazing job with this. Thanks for a great video. And congratulations!

Blown away- This is such an awesome resurrection of secret knowledge from the past. Nice work!

I originally read about this sodium vapor technique a few years ago, and after having been blown away by this ingenuity of having a perfect matte filmed simultaneously, I was super disappointed to learn that Disney lost this technique. As soon as this video popped up in my feed I was like “NO WAY..” but you guys actually did it.. time to bring this back to the filmmaking masses and rid ourselves of the cumbersome chroma key affliction. Well done.

@TheMongooseOfDoom

Ай бұрын

I had the same reaction. I new immediately what the video was about when I saw the thumbnail. I don't even do video production or anything.

@MegaLokopo

Ай бұрын

It isn't a lost technique it was retired, Disney decided it was no longer worth the effort, and it provides no benefit while having massive draw backs. Disney is simply so good at green screen this lazy technique isn't worth it. It also doesn't look nearly as good as good green screen.

@GustavoOliveira-hq2dr

Ай бұрын

What I got from the video isn't that the intent of bringing this back would be to use it as a mainstream technique but to use it as machine learning feed in order to improve the current green screen tech. There are other things to consider such as cost, accessibility, user friendliness and so on, but you can only do so much with an early prototype.

@maih600

Ай бұрын

@@MegaLokopo it’s difficult to set up, impossible for large sets or complex geometry, and requires an indoor studio and no natural lighting. That said, it lacks that sharp visual edge that screams effects and can easily do transparencies. If the technique was developed over the decades instead of retired, I think it would have a place in filmography, likely in creating background elements outside cars, windows, etc on closed sets that they want to appear to be outside/in space/wherever.

@OriginalUnjustifier

Ай бұрын

@@maih600 Exactly, this technique is a new tool(outside of Disney, at any rate), with use cases we haven't even begun to consider. Find those use cases, make a case to the major filmmakers, and develop it's place not as a replacement, but as a new option for shots that are not possible with existing techniques and tools.

Whoa. I had no idea that's how they did it. It seems so much easier, too, cutting out the minute detailing in post. This is incredible.

This is genuinely fantastic tech! I hope studios will see the benefits of bringing back this filming technique.

This has got to be one of the most impressive things on all of KZread actually! The footage is so perfect with the sodium vapor, actually unbelievable

@baptistoriginals

Ай бұрын

I agree, i'm often wrong but i really think these guys have stumbled on to something big for the industry of filmmaking

@smittyvanjagermanjenson182

Ай бұрын

The only thing more unbelievable is the fact that Disney built this technology 60~ years ago and apparently decided to stop using it.. this is the holy grail of keying footage!

@fabfourdub1284

Ай бұрын

This is a bit sad to see that people think this is impossible to do this, cause in fact it was done by many company other than disney and there is plenty of patents in the last 60 years to proove it. I guess the problem is not the technology itself, but that no one put money into pushing aside greenscreen, to help movie making to move forward and put to garbage this greenscreen keying create in the 1930's. 😢

@raccoon9951

Ай бұрын

@@fabfourdub1284 it’s still impressive

@GweiTheLeafChild

Ай бұрын

It's probably by the economics of it, green screen is much cheaper to mass produce, and it was probably a matter of logistics. The results to cost must have been acceptable enough to push the compromises onto the creatives.

I became absolutely OBSESSED with the idea of this ever since that episode of VFXAR, the history behind it, the science, the movie making process, EVERYTHING about it was fascinating to me! I'm excited to see how this could maybe even change the entire industry! Also JC's dress is adorable~ 💚

@samfiles8909

Ай бұрын

Same here bud. I was HYPED when I saw the results. Its 2 am and I'm tryn so hard to hold my excitement!

@bread-lover69420

Ай бұрын

​@@samfiles8909 another Aussie bloke?

@morfy2581

Ай бұрын

If this can become an affordable method, it might just be a budget option for smaller productions but big industry films are probably better off with LED video backgrounds.

@nhiko999

Ай бұрын

Likewise. As someone else mentioned in the comment: even a 10k investment for actual perfect compositing is nothing for a big studio, it's insane the tech wasn't recreated...

@skyscreamstudios

Ай бұрын

@@nhiko999 I've handled lenses worth more than that. 10k is literally a drop in the bucket for a big studio.

I particularly like the insertion of the one-minute Square-Space commercial right in the middle of the content. Just like the original Mary Poppins!

[This video has been removed]

This feels like a really good example of pre-production saving SO MUCH TIME in post-production. By finagling and getting all the lighting right, reducing spill, getting the camera set up, post is Infinitely easier. The greenscreen was probably lit as best as they could too, and yet still needed all that work. It really is magical.

@Sacomoponycam

Ай бұрын

I'm gonna be the grammar police, sorry in advance. Infinitesimal means a Very Very small amount. If post is infinitesimally easier, then it barely changed at all. "All the extra pre-production work made post Infinitely easier" would make much more sense.

@howyhowitzer13

Ай бұрын

Definitely has the same feeling of analog photography and all the setup and lighting versus digital photography where it is all post for sure.

@thewisewolf768

Ай бұрын

@@Sacomoponycam Nah, get'em grammar police are annoying, vocab police are needed. Words are important!

@Appletank8

Ай бұрын

It's biggest achilles heel is that it only works in a limited area, indoors, with no outside lighting. Maybe it'd be fine in caves or buildings where a few characters barely move, but any big action scene wouldn't work. It'd be great for streaming though.

@AndresArosemena

Ай бұрын

​@@Appletank8 did you not watch Mary Poppins? With the rig they created here they just need bigger sources of lights to light a bigger background and more space in front to stand the actors and light them. In essence, a bigger studio. They can rent a studio and do all sort of shots to keep testing this technique

"If you ever think your rigs are janky - they're ALL janky" is such a perfect statement.

@SentinalSlice

23 күн бұрын

Dolbe or dobe lord of jank.

Excellent content. Truly fascinating and informative. I love when forgotten processes and techniques are reproduced and reimagined with currently available technologies.

This is so cool. It’s one of those things where you take a step back from the processes you know and re-assess what the current technology and tools could be applied to solve problems we decided were already solved. There are so many things now that we haven’t even begun to figure out the combinations to and applications for. This is definitely one that is a win.

This was like getting a magician to reveal the exact details behind his/her best illusion. What a freaking incredible invention, amazing that you guys were able to recreate it.

@sterlthepearl1000

Ай бұрын

"Search and you will find." Jesus Christ

@kcdsTM

Ай бұрын

The crazy thing is, they took the research and actually simplified and thereby improved on the design - this was made with off the shelf parts!

@GS-td3yc

Ай бұрын

@@kcdsTM its also that off the shelf parts are now way better.

Things like this is why youtubers in every corner of the internet have talked about their love of corridor

@HahaHumon

Ай бұрын

Yeah this is such amazing stuff.

@BeamFiend

Ай бұрын

Yeah, I remember back when they did that stuff with Ai, people started badmouthing them, but they could never make me hate corridor.

@LQABP

Ай бұрын

It’s impossible to hate Corridor.

@lxlMrSatan

Ай бұрын

Is that a movie?

@kraken2844

Ай бұрын

dude I've been watching corridor for many years. They never dissapoint, but this video was almost emotional for me. y'all stumbled across a gold mine here

THIS VIDEO WAS AMAZING! I loved everything about this, the deep dives and break downs as well as the final product. It looked like a lot of fun as well.

Whats really cool about this is your open sharing of a technology that surely has immense commercial value. Respect for taking the high road rather than lining your own pocket.

So what I get from this is that there's an old timer at Disney, golluming in a cave looking at a cube ?

@jfolmar2004

Ай бұрын

That’s probably what Walt’s up to these days.

@computernoise2209

Ай бұрын

@@jfolmar2004 Walt hid them in secret. He died normally, but he was forced into cryo until we have the tech to retrieve this memory from him.

@AmaroqStarwind

Ай бұрын

Horde your lostech before Comstar finds it

@billfred9411

Ай бұрын

@@computernoise2209 He died from lung cancer and was cremated two days after death. I assume you are joking but sadly i can't be sure because people are so gullible nowadays, they will believe anything.

@jedironin380

Ай бұрын

mmmyyyy pprreecciioouuussss!! 😆

this legit blew my mind. Both on how well the greenscreen footage came out (seriously, that by itself was impressive) but then seeing how clean the sodium shot was, holy damn

@virkots

Ай бұрын

that was my reaction too, haha

@tidel32

Ай бұрын

@@virkots Until you realize the dress is transparent....

@mnomadvfx

Ай бұрын

The green screen footage only looks clean until you notice how b0rked the color of the dress is and the fact that when she turns the wrong way it causes her torso to disappear. It's a good effort, but one that took a fair bit of clean up to get vs this sodium yellow screen technique which basically just works well out of the box. The only thing missing now is to make the entire system more compact and to replace the dated sodium vapor bulbs with yellow 589nm emitting quantum dot leds.

@falleithani5411

Ай бұрын

@@mnomadvfx What's wrong with the bulbs?

@JinxedPixie88

Ай бұрын

@@falleithani5411 Expense and storage - LEDS are much more compact and easier to store and move around. sodium vapor bulbs are, comparatively, quite fragile.

Really brilliant work! It's wild to hear this story and see just how effective the old techniques can a dash of ingenuity can be.

Paul Debevec is responsible for like 90% of the modern CGI/VFX advances. This guy is a real legend.

Pouring salt in that shot has got to be the biggest Flex Disney has ever given

Everyone should be aware that this isn’t just any regular recreation, it’s a restoration of a long lost technological marvel, this is history in the making, everyone should spread this vid worldwide for everyone to know. Congratulations on restoring and refining one of Disney’s greatest cinematic techniques. 🎉🎉🎉

@LightSourceTemple

Ай бұрын

they just changed the vfx game

@LuisSierra42

Ай бұрын

@@LightSourceTemple *restored

@ThePCeristas

Ай бұрын

The Omnissiah is pleased

@eugenetswong

Ай бұрын

I would rather keep it a secret, but yeah, this is cool.

@generalgrievous2202

Ай бұрын

​@@eugenetswongwhy?

I came into this video thinking this would be your typical youtube hyperbole , but you really actually undersold it, wow, what a great piece of history and than recreating something that was lost. amazing.

One of the most tantalizing, joyfull, and learn full videos I have ever seen

I can't believe how rare it is to see something genuinely cool on the Internet

@protips6924

Ай бұрын

Yes, I feel like a boomer, im 20-21 and when I go through the internet I feel like im going through a mind field of junk. I can barely even open up my computer anymore, unless I am studying for UNI. Its a breath of fresh air to open the internet and actually watch someone that adds to my IQ. Magic mushrooms are the only thing keeping me sane.

@Dagoth666Ur

Ай бұрын

So true, these days mostly just clickbaits or stupidity.

@UltraSuperDuperFreak

Ай бұрын

LOL , then you need to freaking wider your search horizon mate . Plenty of actualy cool, insane, and wild things to watch here.

@henrivlot

Ай бұрын

@@protips6924 There's definitely gems out there still, but I see what you mean.

@tappajaav

Ай бұрын

@@protips6924 Sounds like you're on good tracks. Internet is wonderful but it's best used in moderation

The moment he said "they were using a bean splitter prism" at 1:50 I was like "THEY'RE FILMING A MATTE RUN AT THE SAME TIME!!!" My god this really is absolutely ingenious.

@MGmirkin

Ай бұрын

Splitting a lot of beans were they? Maybe a few Black-Eyed- Peas?

@Klaaism

Ай бұрын

Back when Disney actually Fing innovated... They innovated!

@scoobertmcruppert2915

Ай бұрын

@@KlaaismDisney didn’t even develop it, so there’s that and what do you mean they are the ones pushing volumetrics forward…Don’t get me wrong Disney is and has been a horrible company but they’ll keep innovating or pushing others innovations to make that sweet profit. Generally innovation in any industry is just finding new ways to reduce labor and costs of labor unfortunately.

@kazioo2

Ай бұрын

@@scoobertmcruppert2915 Unfortunately? This is literally the same mechanism why 95% of society doesn't work in agriculture anymore and has more interesting and less health impactful things to do.

This is why I follow you guys and have been for many years, legit, amazing and valuable info/content. Corridor rules! 🙌🏼📽️✨

This is probably the coolest thing I’ve seen this year! I hope that big studios will learn this skill again

As an astrophysicist, I found this super cool and interesting as we also use the sodium doublet at 589 nm for the characterisation of our Sun and other stars! And very similar optics, etc. to use :)

Watching a visual-effects artist drink from a perfectly matted bottle of water literally brought tears to my eyes. No more need gauzy materials and long hair be the bane of compositors! Such great work. Thank you all.

@jensenraylight8011

Ай бұрын

RIP for the VFX Artists who Spent 10.000 hours manually Rotoscoping frame by frame, it's as if their effort was unnecessary, just because Disney decided to hide the tech from the world.

@michaelkupfer3723

Ай бұрын

Green screen is obsolete... and so is this (way to hardware depended, way to complicated, try to light a marvel set with sodium lights). The future is The Volume

@jensenraylight8011

Ай бұрын

@@michaelkupfer3723 yes, The Volume is the future if your dad was Bill Gates or Bezos. Studios can barely pay their expenses, let alone invest in super expensive tech It's also very limited, because of the space restriction, Not to mention it's hard to use a flashy practical VFX like explosion or car crash with the volume While Green screen and sodium, you can do a large scale VFX and practical VFX, You can put it everywhere including outdoor, like vfx that require you to jump from building to building It's more versatile, you're not limited to just doing a static dialogue with minimal action cause you don't want to break the illusion from the Volume

@keiyakins

Ай бұрын

​@@michaelkupfer3723 If the volume is all software how do I set it up in my basement

@michaelkupfer3723

Ай бұрын

@@jensenraylight8011 Yes, that's why you rent it. Just like productions rent cameras, lights, rigs, dollys, guns etc etc

My friend recommended this video. He lost me at "sodium nitrate". But he convinced me to check this out & it was very educational. I wish studios would look at channels like yours & maybe learn something for once.

I have a feeling that with this and with Mandalorian’s giant screen background, were on a cinematic re-revolution!

The science and innovation behind filmmaking is so fascinating. The sodium vapor process is evidently remarkable. It's surprising we don't hear much about it despite its clarity and quality.

@IllusionSector

Ай бұрын

I'm stocking up on sodium bulb manufacturer shares because there is no going back to chroma.

@JB-wy8fc

Ай бұрын

🤣

@flyingelephantwalrus

Ай бұрын

Ray Harryhausen used it for all his Sinbad movies

@DisorderedArray

Ай бұрын

Astronomers used to rely on the fact that sodium vapour lamps were used in most street lighting, and they could just notch it out of their images. It's surprising it wasn't used more widely for vfx.

@TheCatBilbo

Ай бұрын

I LOVE the meeting of art, science & artisan skills: making those prisms must have been like a science-informed dark art!

As an engineer who just appreciates the amazing things that were invented in the age of analog, I have to say that finally seeing this technique come back to life nearly makes me cry. I've honestly waited and hoped to see this tech come back to life for years. Hats off to you guys an thanks for working on this remarkable project.

The craziest part is that, with this, there's nothing stopping filming camera manufacturers from putting these kinda filtering prisms right in front of 2 matrices after all the optics of your normal camera lens

One of the best videos to come out of this channel. Thank you!

THis... THIS!!!! is the perfect example of, WHY we need to study history, and old technology, just because something new, dosnt make it better! this was SOOOO amazing to watch!

@michaelkupfer3723

Ай бұрын

It was a nice history lesson. But green screen is way easier, less hardware dependent (try to light a Marvel set with sodium lights) and too complicated. And it still doesn't light the actors correctly. The future is called the Volume

@bladddeesa

Ай бұрын

@@michaelkupfer3723 He addresses that

@Gunth0r

Ай бұрын

@@michaelkupfer3723 yeah the lighting was off and is probably painful to get right on set, but these are techniques that can be rediscovered and refined. Ideally, you would use multiple channels, not just sodium.

@keiyakins

Ай бұрын

​@@michaelkupfer3723 True, green screen is easier and *usually* good enough. It's a great tool. But sometimes it's *not* good enough and for those times something like this is useful.

This is actually so sick! I hope this is picked up industry wide because it looks so much cleaner than greenscreen, makes it more immersive!

@sion8

Ай бұрын

I'm just trying to stick didn't try other methods to recreate in the meantime. It just seems green/blue screen somehow became too powerful. Yet, they always knew there was a better easier method.

@GabrielSantosStandardCombo

Ай бұрын

What's more likely to happen is what they mentioned at the end of the video. This technology can be used to produce top-quality examples of complex masking situations, which you then use to train an AI. The future is AI masking.

This was honestly amazing, I never would have imagined this kind of technology, using yellow and a prism.

This was very impressive to see. I remember seeing the original react video and was blown away then. So to see such a magical technique brought back to life is incredible!

This is a revolution in the industry and the fact that this is portrayed as “deep dives into classic visual effect technology” being an average week at Corridor messing around with old technology is hilarious lol. This is an absolute game changer, we need to reignite it and who knows what further research with it will allow us to do! Amazing work 🙌

@tovarishcheleonora8542

Ай бұрын

Now the only other thing we need is to bring back the CGI quality that existed in the original Jurassic Park trilogy. Instead of the crap that most studios uses nowadays.

@txorimorea3869

Ай бұрын

This is the first step. We now have cheap LED technology that is really good at producing monochromatic light that can be filtered out/in by that technique.

@sion8

Ай бұрын

​@@txorimorea3869 True.

@Linkatchu

Ай бұрын

@@tovarishcheleonora8542 Well, theres alot of good CGI nowadays, the good one you don't notice. Tough the Original Jurassic Park did use mostly practical VFX, didn't they?

@McHobotheBobo

Ай бұрын

I think this could be extremely difficult for larger scale shots

I am absolutely gobsmacked. Like, this made me emotional in a way I can't describe. I've spent nights sweating, cursing, hating everything. Roto until my eyes are bleeding. And I've never come close to anything this good. This was an Arthur C. Clarke moment. It was indistinguishable from magic. Thank you so much for sharing. Now I just need to convince Ian to do the next episode of Dynamo Dream like this...

@GrandHighGamer

Ай бұрын

I have to imagine there's a little more tweaking than they're letting on, you can definitely see light spill in their BTS footage. 7:22 shows their sodium footage and his face is clearly illuminated by it as well as part of his arm. So either he's slightly see through in the footage, or they'd need to do a bit more tweaking to make sure he stays solid. Would probably still be far less work than regular chroma key though.

@Shadow__133

Ай бұрын

Dude, find a shrink!

@bronsoncarder2491

Ай бұрын

@@GrandHighGamer This was also the first time it's been done in decades. There aren't books full of tricks about getting this right. This is technically the first time anything has ever been filmed using this process (since it differs from the original in several important ways, most importantly the prism being swapped for a filter, and the two cameras). The fact that they got this good of a result first try, even if you can nitpick a few moments (that I honestly didn't notice), is pretty amazing.

@straak

Ай бұрын

And the technology was 50 years old.

@monkeysfromvenus

Ай бұрын

@@GrandHighGamer when they converted the orange shot into a transparency mask, they probably just adjusted the gain/curves so the reflected light on oblique angles got crushed to black. I wish they would have shot some more specular/shiny objects, though even that shiny water bottle looked pretty great

OMG this is amazing! I am a great fan of Mary Poppins and I really appreciate to know something new about my favourite film Thanks a lot! Greatings from Italy ❤

That was so cool! I had no idea that Disney invented that lighting technique. And you guys did a great job recreating it.

When I was in college, got to see a presentation by Paul Debevec where he was showcasing his research on being able to put actors into any scene and match the scene lighting exactly. Absolute leading professional in film and lighting.

@Caveyacht

Ай бұрын

his light stage research is truly amazing

This is a great moment in my professional life. Paul Debevec, was one of my influences from over 30 years ago. He is one of the people that came up with the idea of using HDRIs to light a scene. We owe the domelight to him. I remember emailing him about HDRI, and his film Fiat Lux... so awesome guys.

@baptistedelplanque8859

Ай бұрын

My brain froze for a second when I recognized him! Apart from that the optical setup doesn't feel special if you're versed into hyperspectral imaging 😅

@vailias

Ай бұрын

I was like "Wait, THAT Paul Debevec? No wonder he's doing more optical wizardry"

I've never imagine this much clean background shot existed!!! I hope one day some indie film makers also using this tech.

Of all the videos you've done, I love this one the most.

There was a push a while back when sodium street lights were starting to get replaced with more modern technologies to stick with the sodium lamps because it made it easy for astronomers to filter out earth-based light pollution in the atmosphere by simply filtering out that single wavelength of light. Obviously that didn't go anywhere. I kind of wish they had made sodium lights mandatory as they were way easier on the eyes for night time driving than modern LEDs.

@rylamistrandall6517

Ай бұрын

THAT WOULD'VE BEEN AMAZING, WHAT WE'VE BEEN LOSING OUT ON

@jameswales2122

Ай бұрын

The issue is those lights are not as efficient, have a shorter lifespan and are harder to control the quality of. In the UK our street lights direct light downwards a lot more and in areas with observatories no street lights are allowed past a specific time

@rylandrc

Ай бұрын

Seeing in monochrome has disadvantages though, especially when it comes to driver safety.

@lajoswinkler

Ай бұрын

LEDs are better considering even whole life cycle AND you can tweak their spectrum. The only thing why they are ruining our night skies is because of the officials buying wrong ones. They could be both carbon footprint saving, and less light polluting. It is possible to have both.

This is fascinating. I work in astronomical research and can say that astronomers regularly get beam splitters of exactly this type (separating Sodium light at 589 nm from everything else) custom made for use in our instruments. Our use case is obviously completely different (laser guide stars for adaptive optics) but it's the same optics.

Amazing results! Well done!

Incredible work guys! As someone who's been keying since the 2000's, I was beaming at the results here. Amazing!

I want to sincerely thank you for this video. Right now, my students are learning about wavelengths and frequencies of light, and this is EXACTLY the sort of thing I was hoping for to get them interested. I could never have the time, funding, and skill to do it myself; you’re doing amazing things that go way beyond the film set and art! You just made a video that I'll be sure to play in my classroom for the rest of my career. THANK YOU!!!!

Niko: “They were never able to replicate the prism.” Paul Debevec: “Hold my beer”

@joyfulnoize6958

Ай бұрын

"Hold on" -Roger Waters

@SmallSpoonBrigade

Ай бұрын

It's unclear why we need that with modern technology. It was required with film cameras because there was no easy way of throwing out just one narrow bit of light spectrum. However, with digital technology, it's rather easy to split just the sodium vapor light color to a separate layer with just one camera and interpolate between the two adjacent sides to create a mask. I do think this is a really cool exercise, but there's a reason why the technology isn't going to see a reassurance, although it probably could have stuck around longer.

@NotoriousNickNorris

Ай бұрын

@smallspoonbrigade ⁠you're not selling it. If it is so easy, why aren't they doing it? It would save a fortune in post-production costs and produce a superior product.

@error.418

Ай бұрын

@@NotoriousNickNorris Right now this reproduction cuts light levels in half, not to knock it, just a trade-off that would be fine for some scenes and not fine for others, but all movies need multiple tools, so still valuable

I really didn’t expect the result would turn out to be so good, amazing!

This is without doubt one of the most interesting videos I've ever seen on KZread, and probably the only one where an apparently clickbait-y title was actually an understatement, and the content far exceeded the promises made by the title.

YOU DID IT! And using off the shelf components means that for the right price, anybody can do it.That means you don't need to manufacture prisms for new digital cameras to simply do a key shot, ANY production with a budget can probably utilize this incredible setup! This is very exciting, I am so glad that you got to try it out first.

@thebigitchy

Ай бұрын

I’m sure there was a lot that needed to be fabricated. If the two digital cameras aren’t perfectly in sync, the footage would never line up. And especially with cameras with rolling shutter, they would need to be scanning perfectly simultaneously. So probably not just “anybody” can do this. That being said, I think that they proved that the technique is feasible with modern technology and digital cameras. It sounds like they originally did this with existing synchronized film camera technology. I think one of the key advantages of modern chroma key is that everything is done with a single camera. So despite its limitations, except for the software, no specialized equipment is necessary.

@Leeki85

Ай бұрын

@@thebigitchy This is fairly simple to do on the hardware level. Film makers often create their own technology and there are small companies that do such projects. Within a year there will be a ready to use product. It's easier than you think. With 3D printers, microcontrollers and whole DIY market it is fairly simple to prototype and develop such tech. However like Paul said in the video. This will be mostly useful to train AI. Within few years there will AI solution that will be capable of perfectly removing background from any object.

@Hamachingo

Ай бұрын

@@thebigitchysyncing digital cameras is easy, the professional ones all have a connector for just that.

I knew about the splitting process used on Mary Poppins, but I had no idea that it was such a cleaner solution than green screen, and it blow my mind to learn that no one has tried to recreate the effect until now! Great video.

probably Disney stole it back on the day and the man never gave up his secrets.. you guys are legends keep it up

So cool and awesome! You guys keep making it hard to have just 1 fav video, when you look at and do some really cool stuff. It’s great getting more of a in-depth look at these techniques. the scene from Mary poppins in the chalk drawings has always been one of my favourite movie scenes so this awesome to watch to get an idea of how they did it. ❤

Paul Debevec is the OG father of HDRI, I remember back in 99 trying to learn and figure out image based lighting for the first time. Thank you Mr. Debevec for your contribution to modern VFX!

@rolandwfleming

Ай бұрын

His light probe image gallery helped launch my academic career...