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This looks and sounds incredibly cool, but I have no real idea what it does. Could someone with domain knowledge give me a bit of a high level explanation? I
by JonLim 11y ago
This looks and sounds incredibly cool, but I have no real idea what it does.
Could someone with domain knowledge give me a bit of a high level explanation?
I have inferred that it's something you use while shooting footage to capture how light is present in the room at all of the different possible angles. Is this then used to be able to generate new scenes that VR headsets can walk around and interact with? Or is this more for being able to add computer generated images into the room and light it properly?
- dubcanada 11y agoIt's more the latter, it doesn't actually capture the image like a camera would. Instead it captures and records every single light ray and reconstructs the environment based upon that. That would then allow you to overlay computer generated images onto basically a heightmap that has 100% accuracy to the real world. At least that's what I got from the video.
- theschwa 11y agoActually, he was right with his first guess. This isn't about capturing film with a heightmap like RGBd cameras do, it's about capturing all light that goes through a volume of space from all angles. If you can fulyl capture all light that enters a volume of space, you can accurately recreate a view from any point in that space. So, in VR I can move my head around, both by turning my head around and moving forward, backward and side to side and accurately see any view. This does also allow adding CG elements, but it's real strength is being able to capture enough of the light coming through so that you can almost 'teleport' to where the video was recorded.
- deleted 11y ago[deleted]
- ryandamm 11y agoIf you want a dense, technical explanation, I wrote about this hypothetically back in April, for the same site: http://uploadvr.com/what-the-bleep-is-lytro-doing-in-vr/ http://uploadvr.com/what-the-bleep-is-lytro-doing-in-vr/ The editor informs me that HN has crushed his site, though. Should be back up soon, I hope. (Good argument for mirroring my own articles on my otherwise-defunct blog, I suppose.)
- wlesieutre 11y agouploadvr_will, you've been marked as [dead], probably due to spam filtering on new accounts. Most users won't be able to see your posts, but you should be able to contact the admins to get it fixed.
- DanBC 11y agoIf you click the timestamp you should be taken to a page that has a "vouch" link. So non-mods can now vouch for dead posts. Here's the announcement: https://news.ycombinator.com/item?id=10223645 https://news.ycombinator.com/item?id=10223645 And here's a follow up: https://news.ycombinator.com/item?id=10478886 https://news.ycombinator.com/item?id=10478886
- wlesieutre 11y agoNeat, I missed that! Thanks for the heads up.
- dang 11y agoI think DanBC inadvertently gave the wrong (first) link for the original announcement of this feature. It was https://news.ycombinator.com/item?id=10298512 https://news.ycombinator.com/item?id=10298512. The link Dan gave was when we announced some other stuff, that you also should know about. :)
- uploadvr_will 11y agoIt crushed it for a bit, but now it is back and strong