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#sodiumvaporprocess#compositing#vfx

This Invention Made Disney MILLIONS, but Then They LOST It!

Corridor Crew

7.1M subscribers • 2 videos on Hallway

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  • Recommended by 2 people: 2 on Hacker News.

Beginner. No background in the topic needed.

7.3M views2 years ago2 recommendations

Graphics and audioHistory and cultureRenderingHistory of computing

Corridor Crew explains and demonstrates Disney's historical sodium vapor process for creating high-quality visual effects mattes.

Squarespace ► Head to squarespace.com/corridorcrew to save 10% off your first purchase! Our videos are made possible by Members of CorridorDigital, our Exclusive Streaming Service! Try a membership yourself with a 14-Day Free Trial ► corridordigital.com/ Four years ago, we learned about Disney's magic prism that created the best transparency mattes. We thought that prism was lost... until we found it. Instagram ► instagram.com/corridordigital Merch ► corridordigital.store/ Creative Tools ► Puget Computers: bit.ly/Puget_Systems Aputure Lights: bit.ly/Corridor_Lights B&H Photo: bhpho.to/3r0wEnt ActionVFX: bit.ly/TheBest_ActionVFX Greyscalegorilla: bit.ly/GreyscalegorillaPlus Cinema4D: bit.ly/Try_Cinema4D KitBash 3D: KitBash3D.com/?ref=corridorcrew Houdini: bit.ly/HoudiniSims Nuke: bit.ly/Nuke_Compositing BorisFX: bit.ly/BorisFXsuite Octane Render: bit.ly/Octane_Wrender Epidemic Music: bit.ly/Corridor_Music Greenscreens Suck The Science How Is This Working? Squarespace The Experiment Compositing The Results

Why it's here

2 people recommend this

What people say. Recommended for its fascinating look at a superior, pre-digital optical compositing technology.

btownon Hacker News • Recommends

On “The Walt Disney Company and OpenAI Partner on Sora”

To add to that (extremely thought-provoking) video, I do think that the Marvel model of "pre-viz everything to death, the edit's already done before filming begins" - link - can lose a lot of spontaneity. Perhaps the fading luster to Marvel films overall will bring us back from this place. On a more tangential note around green screens and their limitations when used ubiquitously, Corridor Digital's quasi-rediscovery of the Sodium Vapor process used by Disney through the early '80s, but lost to history ever since, is a fantastic watch. link to this video

nuccyon Hacker News • Recommends

On “Walt Disney's MultiPlane Camera (Filmed Feb. 13, 1957) [video]”

Some technologies have been lost, even though they were superior to what is available today. Take, for example, the old “green/blue screen” technique using sodium vapor lamps, used by Walt Disney in film production in the pre-digital era: link to this video (12 minutes long, but totally worth it).

shagieon Hacker News • Mentions

On “Blue Origin reaches orbit on first flight of its titanic New Glenn rocket”

Half silvered would work too. I was using the 3CCD prism as an example of splitting an image into multiple parts and avoiding issues with parallax. If you stacked cameras on top of each other with their own lenses, you'd inevitably get slightly different focal lengths, focal distances, and camera positions. Aside with the dichotic filter... there was a neat trick that was lost (and refound) with a sodium 589nm dichromic (notch) prism. link to this video

albreweron Hacker News • Mentions

On “PWM flicker: Invisible light that's harming our health?”

> This made them useful for astronomers because their light was easily filtered The wavelength is so specific that it can have all kinds of cool applications: link to this video

meatmanekon Hacker News • Mentions

On “It Took Me 30 Years to Solve This VFX Problem – Green Screen Problem [video]”

The lights are relatively easy to get. iirc (it's been a bit since I watched their full video on the subject1) the hard part to find was the splitter that sends the sodium-vapor light to one camera and everything else to another camera. 1. link to this video

toast0on Hacker News • Mentions

On “It Took Me 30 Years to Solve This VFX Problem – Green Screen Problem [video]”

…might be cumbersome, but the results seem wortwhile. Also, you need still need careful lighting, you don't want your foreground illuminated by sodium vapor, but I wonder if you could light the background screen from behind (like a rear projection setup) to reduce the amount of sodium vapor light that reflects from the foreground to the camera. 1 link to this video…