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There's a lot of interesting structure in snowflakes that remains hidden in visible light photography. Look up SEM micrographs of 'snow crystals'. You'll find
by jcims 6y ago
There's a lot of interesting structure in snowflakes that remains hidden in visible light photography.
Look up SEM micrographs of 'snow crystals'. You'll find a few universities contributing to the art/science:
https://sgil.ba.ars.usda.gov/snowsite/sequentialdata/sequentialdata.html https://sgil.ba.ars.usda.gov/snowsite/sequentialdata/sequent...
If you're skilled in the art of cross-eyed 3D you can see some here:
https://sgil.ba.ars.usda.gov/snowsite/stereo/stereo.html https://sgil.ba.ars.usda.gov/snowsite/stereo/stereo.html
- foobarbecue 6y agoCool, but these seem to all be Z-inverted when I magic eye them. I.e. the lows are high. Btw I have experience making stereograms. Pretty sure it's not "just me. "
- pimlottc 6y agoIt just depends on whether they were made for cross-eyed or wall-eyed viewing. They look correct to me using the cross-eyed technique. https://en.wikipedia.org/wiki/Autostereogram https://en.wikipedia.org/wiki/Autostereogram
- mckirk 6y agoHuh, TIL. I find "wall-eyed viewing" much more comfortable and defaulted to that, then also wondered why the image didn't seem impressive at all... Never realized there was this difference, though it seems obvious in hindsight. Thanks!
- dwighttk 6y agoI can never get wall eyed to work. When I was a kid I’d play around with crossing my eyes though.
- pimlottc 6y agoYeah, I can get wall-eyed to work with effort, but cross-eyed is very easy for me too.
- core-questions 6y agoI can do both, but cross-eyed is way easier. Anyway, just flip the image pair horizontally mirrored and it'll be corrected for you. I found that these images, despite being walleye mode, still show their pertinent structure when crosseyeing them.
- foobarbecue 6y agoAh, that'll be it. I never even knew about the cross-eyed ones. A new skill to learn...
- foobarbecue 6y agoIf I swap the images, will it fix it?
- intrasight 6y agoThis particular 3D blew me away. It's as good or better than any alien spaceship model I've ever seen. And it really shows the complexity of the depth dimension of snowflakes. https://sgil.ba.ars.usda.gov/snowsite/stereo/images/10134_35.jpg https://sgil.ba.ars.usda.gov/snowsite/stereo/images/10134_35...
- jcims 6y agoThat's one of my favorites as well! It looks like such a cool blend of biology and technology.
- intrasight 6y agoAnyone know if someone has implemented procedural generation of 3D snowflakes? After seeing the images and stereograms, I'm thinking that would be an intellectually rewarding project.