What kind of voodoo is this? Since when does the browser window know its position on the desktop? I guess this only can work on localhost connecting to some service that knows about your browser windows.
Best quantum entanglement graphic I've ever seen!
https://video.nostr.build/58693fbd04200576541423b0b93d33bc3acc3e138b4dd6aec63a9e34cd45e5c5.mp4
Discussion
The code isn't public yet; I just saw the demo, and I believe it's rendering the same objects on the left and right with different camera settings. When the window moves, the x, y coordinates of the right object update in both renderings.
isn't this it? https://github.com/bgstaal/multipleWindow3dScene
Yup
Here play wit it https://bgstaal.github.io/multipleWindow3dScene/
Ok! TIL! And it doesn't even get confused by my two screen setup which makes me wonder about fingerprinting. I didn't know apps could look that far outside their own window.