THE VIDEO SHELF · sodium vapor compositing
This Invention Made Disney MILLIONS, but Then They LOST It!
Corridor Crew tracks down Disney's lost sodium vapor prism process, used for Mary Poppins-era transparency mattes. They explain how a narrow sodium wavelength and a beam splitter enabled better compositing than green screen.
Why HN readers recommended it
Recommended as a fun, informative rediscovery of a lost film-effects technique.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- Corridor Crew
- Topic
- sodium vapor compositing
- Format
- explainer
- Level
- general
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 6
- Recommendation years in dataset
- 2025–2026
These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.
From the original HN conversations
Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.
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 …
btown on Hacker News · 2025-12
In The Walt Disney Company and OpenAI Partner on SoraSome 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: [VIDEO] (12 minutes long, but totally worth …
nuccy on Hacker News · 2025-03
In Walt Disney's MultiPlane Camera (Filmed Feb. 13, 1957) [video]
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.