Walt Disney's MultiPlane Camera (Filmed: Feb. 13, 1957)

That's a good example. Look at the video showing off this exact tech: ▶ this video You feel like you are part of the family while watching this. It's a completely different vibe. Honestly, I feel vaguely threatened by the HoloTile Floor demo tone. The way he answers the question about what's it's going to be used for feels like a parent that doesn't want to reveal something to a child.

I built a multi-plane camera setup in high school for an animation project in, without knowing it was a thing used in the industry. My version was very simple. Instead of stacking the planes, I hung them from yardsticks spanned between two tables, so I could slide the planes forward toward the camera at different rates of speed. Here is a short doc from Disney (1957) about the invention of the first multi plane camera: ▶ this video

This is really nice. Although Disney is only currently producing 3D animation films, it's a bit of a shame that nothing about 2D animation is included. The 3D animated film Spider-Man: Into the Spider-Verse (2018) has a refreshing 3D/2D hybrid visual look that breaks away from the 3D aesthetic common across the industry. I suspect in the future we'll see more animated films with a 2D aesthetic but created with 3D software. Aside : Disney produced lots of behind-the-scenes for their 2D animated films in the 50s and 60s. Here's one on the MultiPlane Camera - a camera setup that gave 2D animation greater depth: Walt Disney's MultiPlane Camera (1957): ▶ this video

Here's a fascinating video in which Walt Disney showcases how his multiplane camera worked: ▶ this video Truly incredible.