Or is this an artifact because it's a photo of a physical item...
this post was submitted on 30 May 2025
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HistoryPorn
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Are these before and after? If so that looks like what I would expect fire to do to granite.
It's a stereoscopic photo; if you cross your eyes when looking at it so that the two images overlap, it will appears 3D
I tried it cross-eyed but the perspective is wrong. I think it's wide-eyed like a viewmaster
naw it works as a stereogram on my phone just fine. It helped me to line up the yellow outlines first and then the center snapped into place. very cool!
Yes, the previous commenter just specified that the image should be seen "wide-eyed" (eyes focused on farther away / closer to parallel) than Cross-eyed (eyes aligned like you were looking at something closer).
If you go cross-eyed, the depth is reversed/incorrect since you are seeing the different images with the wrong eye.
It’s tough but doable without the guide dots.