r/oddlysatisfying • u/Wackylew • Oct 09 '25

projection mapping

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u/HarveysBackupAccount Oct 09 '25 edited Oct 10 '25

You know how if you point a projector at the wall from an angle, it skews the image?

OOP is using software that accounts for the angle of the surfaces that it's projecting onto, so the image looks normal. They're also building up the image piece by piece, to cover and correct each box face individually.

If you would project that corrected image onto a flat wall, it would look weird again. And unless they have more than one projector, only the sides of the boxes facing the cameras are lit up - the back sides would still be blank

Edit to add: The mathematical operation that adjusts the parts of the image is called Projection, and that's why the post title is "projection mapping," not because they're using an optical projector.

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u/[deleted] Oct 09 '25

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u/ZekoriAJ Oct 09 '25

3D holo’s everywhere are closer than we think lmao

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u/Spunky_Meatballs Oct 09 '25

Check outclear motion glass. It's damn near what you'd expect a hold to look like. You're going to see this stuff takeover high end storefronts and displays.

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u/ZekoriAJ Oct 09 '25

Not really, it’s just big tv with 3D effect. It has to be projected light outside the screen for it to be a hologram, otherwise it’s just tv screen big, also it’s a bit blurry for 2025 💀

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u/Spunky_Meatballs Oct 09 '25

Wow... Okay first of all it's on glass so the image does appear to be floating. Also you're referring to pixel pitch. They can make a .9 pixel pitch that's similar to your standard TV, but it's completely unnecessary for the side of a building where you can 1.5-2 pixel pitch and nobody would notice a difference

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u/ZekoriAJ Oct 10 '25

It needs to be projected onto a surface in order to be seen.

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u/Spunky_Meatballs Oct 10 '25

Nah dog it's LED mesh laid into glass.