[HN Gopher] Show HN: I 3D scanned the interior of the Great Pyra...
___________________________________________________________________
Show HN: I 3D scanned the interior of the Great Pyramid at Giza
Hey HN, I 3d scanned the interior of the Great Pyramid / Khufu's
pyramid for the Giza Project this summer and just finished the
guided version to share. Would love feedback and/or problems you
encounter. I used both a Leica BLK 360 and Matterport Pro 2 to do
the scanning and the Matterport SDK for the web viewer.
Matterport's web display with Three.js has been the most accessible
to a wide audience in the past (previous iterations are in Unity
and Unreal, but difficult to download over slower connections).
I've been interviewing social studies teachers around the 6th grade
level to create teaching materials as well, and these along with
other monuments that I've scanned at Giza are up at
https://giza.mused.org/ Cheers from Cairo--and thanks for any
feedback.
Author : lukehollis
Score : 1124 points
Date : 2022-10-27 13:31 UTC (9 hours ago)
(HTM) web link (giza.mused.org)
(TXT) w3m dump (giza.mused.org)
| layer8 wrote:
| The page crashes for me on iOS.
| moffkalast wrote:
| That is so odd, after all Safari is known to have wide support
| for everything. /s
| lukehollis wrote:
| Thanks for letting me know!
| malteof wrote:
| Same! iPhone 12 on latest iOS.
| ErneX wrote:
| Try tapping the "aA" on the URL bar and disable content
| blockers.
| layer8 wrote:
| Doesn't help.
| zach_garwood wrote:
| alex_suzuki wrote:
| What's with the passive-aggressive unhelpful Apple-hating
| comments?
|
| Just users of a browser with 20% of mobile market share,
| reporting a bug.
|
| And btw, I can confirm this crashes for me some way into
| the pyramid (iOS 16).
| mseepgood wrote:
| I expected ornaments, wall paintings, hieroglyphics - at least in
| the burial chamber - but nothing. Just a plain sarcophagus.
| bragr wrote:
| This appears not to work under Brave due to a strict CORS policy.
| The call to https://static.matterport.com/geoip/ is throwing a
| MissingAllowOriginHeader.
| lukehollis wrote:
| Thanks for letting me know--I use Brave also but must have it
| configured differently. Will test in the future.
| sdo72 wrote:
| This is very amazing. Thank you very much!
| lukehollis wrote:
| Thanks for visiting & feedback!
| MichaelZuo wrote:
| Great work, though the images of the entrance seems to be split
| into hundreds of tiny pieces, what's up with that?
| nidnogg wrote:
| This is very solid work, really exciting to get this perspective.
| As someone who's never left his home country and is often
| thinking of deserts every now and then, it's really inspiring
| stuff to see.
|
| A very slight hiccup - I couldn't find a way to disable the
| "You're now standing on the blocks [...]" tooltip on Firefox.
| It's a litle big and immersion breaking - if it'd be shown once
| that'd be more fitting. While this could be fixed via console, I
| think it's something to consider.
| mortenjorck wrote:
| Incredible work bringing so many moving parts together to make
| such a seamless, immersive experience. Online museums have been
| an aspiration since the early days of the web, and this exhibit
| sets a new bar.
|
| One slight hiccup I noticed: The guided tour frequently clips
| through the geometry, which breaks the immersion a bit. I don't
| know if the Matterport SDK has any facilities for following paths
| rather than a straight line when automatically navigating, but if
| it's possible, it would be a nice addition.
| kridsdale2 wrote:
| And if it doesn't, it's a request they should be happy to take
| on for academic work like this.
|
| They should recognize they have a big opportunity for great PR
| gains by officially supporting this kind of project, which
| could feed back to their primary real estate based business.
| lukehollis wrote:
| Thanks for the feedback--this is partly due to the way I built
| the scan tour points. Can revise in the future.
| thomasahle wrote:
| What system are you on? With Chrome 106 on a 2019 Mac Book Pro
| the website is completely unusable at 1 frame per 2 seconds...
| anthk wrote:
| Type in about:flags in the Chrome URL bar.
|
| Search for "Override software rendering list". Set it to
| "Enable". Restart Chrome.
| Ensorceled wrote:
| Serious claustrophobia on a 4k monitor, had a reduce the window
| size.
|
| Very awesome.
| dekhn wrote:
| Originally, the exterior of the pyramid was covered in polished
| limestone (casement) that has since fallen off/been removed.
| Apparently you would have been able to see them from many miles
| off as incredibly bright triangles.
| HPsquared wrote:
| I wonder if they'll ever be restored.
| TanguyN wrote:
| Probably not as that would be quite a... pharaonic task.
| dekhn wrote:
| More importantly, the areas are preserved now, not being
| restored to their former glory. Many of the stones were
| carted off and used in other buildings, with the rest
| sitting at the base of the pyramid.
| sergiotapia wrote:
| This is incredible thank you so much for sharing this!
|
| Something terrifying about how deep underground you go and then
| you reach a pitch black hole and there's still more to go. Wow!
|
| How was it inside? Is it very silent? I imagine it gives off very
| weird energy.
| pencilguin wrote:
| The King's Chamber measures 10x20x10 cubits, as precisely as
| Egyptians could cut stone, providing us a very precise measure of
| the builders' cubit. By outstanding coincidence, the chamber is
| exactly 5pi/3 _meters_ wide. (This also equals 2phi2 meters.)
|
| The diagonal from corner to opposite corner is 10+sqrt(2)
| _meters_ , to three places.
|
| The ancient Egyptians would have been awed by such coincidences.
| Us, not so much.
|
| I don't know of anyplace where ancient Egyptians demonstrated
| knowledge of phi, which has the wondrous properties that
| 1/phi+1=phi=phi2-1. They could of course measure pi as precisely
| as they liked just by tracing a big circle.
|
| Some people make a big deal about the perimeter of its base
| matching its height times 2pi, and about ratios of these
| dimensions to the sizes of the Earth, Moon, and Sun. Khafre's is
| a bit smaller, so its ratios would be off.
| Bellend wrote:
| I really really enjoyed this and the information. Thank you so
| much for putting the time in to make it. I doubt I will ever see
| the Pyramids but I always wanted to and this was the closest I
| will likely get. My mind is blown by the whole topic.
| [deleted]
| sandreas wrote:
| This is just awesome... Thank you!
| divbzero wrote:
| If we wanted to build a monument today that would last 4000+
| years, how would we do it? Is a large pile of carefully placed
| rocks still one of the best ways?
| newaccount2021 wrote:
| jastanton wrote:
| Here is one called the 10,000 year clock that is currently
| under construction (by Jeff Bezos). You can read about it here:
| https://www.10000yearclock.net/learnmore.html
| guynamedloren wrote:
| Mind blowing. Really well done!
| spaceman_2020 wrote:
| This is one of the best things I've seen online in years. Thank
| you so much!
| onemoresoop wrote:
| This is very insightful. Thank you for all your work!!
| JofArnold wrote:
| Incredible. Thank you so much for that. What an incredible
| project and one I think will make a huge impact for years.
|
| Question. I noticed a very unusual experience I've not felt
| before in a 3D world; I started to feel claustrophobic - so much
| so I had to close the tab. I'm curious; has anyone else
| experienced the same do you know? If so, any ideas why it should
| be so powerful a feeling in this particular case?
| lukehollis wrote:
| That's super interesting--thanks for the feedback. I'm really
| curious if others have felt this also.
| goldthwait wrote:
| Yes! I felt the same and I was going to write a separate
| comment on that before I found this conversation. I don't
| know how you managed to crawl(?) through all those tunnels
| but it just made me sick following through the guided tour.
| Besides this personal note, I think this is an amazing work!
| Very informative, the transitions are well-thought and
| smooth. Thank you for sharing it with us.
| Ensorceled wrote:
| Definitely count at least one more person experiencing
| claustrophobia ...
| Ensorceled wrote:
| I think it's the combination of "movement" and very high res
| pictures.
|
| Once you start moving into the tunnel you really get the
| feeling you are there.
|
| Also the rig might have been set at 6' (that's matterport's
| default recommendation, or at least it was) so you really feel
| the low ceilings.
| JofArnold wrote:
| I think you're right about that. The guided tour was fine but
| navigating to the top myself was where I got the reaction. I
| definitely experienced the height.
| gigaflop wrote:
| I'm a tall guy, and started feeling claustrophobic when I saw
| what some of the tunnel entrances looked like. I never used the
| measurement tool to verify, but they looked like they'd have
| made me prefer crawling instead of crouching.
|
| Something that confirmed my suspicion: In the King's chamber,
| 'stand' next to the sarcophagus, and look behind you. I won't
| explain further.
| EricDeb wrote:
| I went there and yes had to awkwardly crouch/walk up that
| whole thing.
| coldcode wrote:
| I am not normally claustrophobic, but being tall and some of
| these shafts are very low, I would be unlikely to make it
| very far before abandoning the attempt. I am glad I saw this
| though, I can at least do it remotely.
|
| How anyone did this originally and to rob the place, is
| amazing.
| shmerl wrote:
| Moving with arrow keys is very cool!
| JohnJamesRambo wrote:
| Oh wow, thank you for doing this. I'll probably never be able to
| go to the real thing and this has been a fascination since
| childhood! I've got every part memorized from a book I had that
| had line drawings of the chambers.
| heavyheavy wrote:
| This has to be one of the most incredible things i have even
| seen. Thank you so much for this experience.
| ugh123 wrote:
| >"The ancient historians, like Herodotos, that recorded Khufu,
| mention that he was a fierce and stern ruler."
|
| >"These accounts are from over 2,000 years after Khufu lived,
| however, so we might not be able to believe them."
|
| I thought that second sentence was an unnecessary take.
| motoxpro wrote:
| I thought it provided context for the first sentence. I was
| glad it was there.
| yamtaddle wrote:
| A lot of readers probably don't have a rough idea of how old
| many of the major Ancient Egyptian monumental works were by the
| time the Greek Classical period began and we started getting a
| substantial amount of surviving Western literature outside
| monumental inscriptions and tax records and stuff like that.
| massinstall wrote:
| I'm curious to see it but FYI it doesn't work on an iPhone with
| Firefox (you can never get past the first screen).
| elliotpo wrote:
| i am using it on an iPhone with Firefox right now
| cormullion wrote:
| Works fine on my iPad too...
| 1970-01-01 wrote:
| Very cool! I suggest pairing with the Myst soundtrack.
|
| https://www.youtube.com/watch?v=zboL71iRFBE
| runjake wrote:
| As many others have commented. My first thought was "Amazing!"
|
| The only thing I encountered is that my mouse wheel scrolling was
| a bit too touchy and I kept accidentally zooming too much into a
| 3D scene while scrolling the text.
|
| But that doesn't really matter, because this is amazingly cool.
| stvnbn wrote:
| This is awesome! It's like being there. I always wanted a tour.
| Thank you!
| me_bx wrote:
| Looks pretty cool.
|
| Feedback about the 3D navigation experience:
|
| * very laggy on Firefox android, on a decent device * very laggy
| on Firefox linux (Intel graphics) * smooth on Chromium with the
| same linux (Intel graphics)
| tetris11 wrote:
| smooth on Firefox in Linux for me, Intel graphics
| TheBigSalad wrote:
| This is amazing!
| matthewhartmans wrote:
| This is super well done!
|
| Going through the pyramid brought back so many memories. Had such
| a great trip here and because of this, I got to experience it
| again.
|
| The website interactions are silky smooth and beautifully done
| and the image quality is just amazing.
|
| Thanks for putting this together!
| acdanger wrote:
| Amazing work. I'm also interested in digitizing artifacts and
| historic places, but haven't been able to figure out how to go
| about getting a project off the ground.
|
| Any chance you'd do a write up explaining how you were able to
| get this project set up? I'm more interested in the logistics and
| the red-tape you had to go through in order to get access to do
| the scans. I see you've got a business setup around it as well,
| are you hiring? The jobs page leads to the blog right now.
| lukehollis wrote:
| Thanks, and yes, I haven't blogged about this yet but will.
| It's really important that the local teams that make these
| scans happen are featured prominently. For similar process
| here's the blog that I wrote about working at Luxor Temple with
| the Ministry of Tourism and Antiquities and the University of
| Chicago: https://blog.mused.org/digitizing-luxor-temple-a-
| virtual-fie...
|
| Drop me a line! I'd love to chat--I'm at luke@mused.org
| robmerki wrote:
| This is absolutely amazing work. I have been searching for
| something exactly like this for quite some time. I am beyond
| thrilled that this now exists. THANK YOU.
| lukehollis wrote:
| Thanks for visiting! There are a few of these scans in the
| works that I linked in the comments if they're interesting for
| Ancient Egypt or elsewhere.
| spaceman_2020 wrote:
| Same feelings. I've been fascinated by ancient Egypt as long as
| I can remember and this is just about perfect.
| throwaway094534 wrote:
| This is so neat! I was curious about the graffiti that could be
| seen, and wondered at what periods it was accessible, and to what
| degree.
|
| My only comments: - we clip through the walls sometimes - I would
| have liked to travel a little more slowly sometimes - some kind
| of indication of horizon (like airplane attitude guage to get a
| sense of how steeply we are descending?
| daggersandscars wrote:
| If you liked this, you may be interested in the Monte Alban
| Virtual Reality Laboratory (MAVRL) project.
| (https://montealban.oucreate.com/virtual-reality-2/). The site
| was scanned and put in Unity, allowing them to experiment with
| different positions of the sun, etc.
|
| From the site:
|
| In the summer of 2017, a DJI Phantom 4 Pro+ drone was used to
| take over 15,000 photos of the Main Plaza of Monte Alban. These
| photos were processed using Agisoft PhotoScan Professional
| software to digitally reconstruct the Main Plaza and surrounding
| Architecture producing a photorealistic 3D representation, and
| other highly accurate maps for archaeological study. A year
| later, Dr. Alex Elvis Badillo and Dr. Marc N. Levine developed
| the project MARVL to push the digital data captured in 2017
| further beyond mere maps and 3D renderings.
| amatecha wrote:
| Clicking "Explore" button does nothing for me -- what is it
| supposed to do?
|
| When I load the page I can see the following JS error in the
| console:
|
| Uncaught TypeError: o is undefined <anonymous>
| AbstractPlugin.js:12
|
| Running Firefox latest Win10, "strict" Browser Privacy settings.
| akiselev wrote:
| It looks like I have a related failure. Latest iOS Safari with
| DNS level adblocking.
| CobrastanJorji wrote:
| I'd love to hear about the process you went through to get
| something like this approved. I am very curious and slightly
| scared of the sort of red tape that is involved for a proposal
| that starts "I'd like to do something to the Great Pyramid," even
| if it's as innocuous as taking pictures. Or was it maybe a right
| place right time sort of thing where you were there with an
| existing scientific investigation and it was significantly
| simplified.
| cjauvin wrote:
| Many years ago I had the chance to visit the Pyramid of Giza but
| when it was time to go inside it, I've been instantly stopped by
| my visualization of how I would feel in this tight and
| claustrophobic space (almost crouching in some places, I've been
| told), especially if there are many people at the same time, and
| you cannot easily move.. So I'm very glad to be able to finally
| see it with such an amazing technology, thanks!
| lukehollis wrote:
| Thanks so much for this feedback--providing accessibility for
| these spaces is a huge concern for our future work.
| hatsubishi wrote:
| Is it possible to see it in VR?
| seydor wrote:
| Works great with Quest2 , and it s amazing
| Bad_CRC wrote:
| with the normal browser?
| seydor wrote:
| Yes
|
| Matterport always worked well for me. Surprisingly i have
| found that some other startups in the VR real estate space
| do not work at all with the Quest. It's very odd to build a
| product that doesnt work with the (by far) most popular
| headset
| cryptozeus wrote:
| I an sure its good, doesn't work on safari on ios 16
| zach_garwood wrote:
| That sounds like an Apple problem. Works perfectly on Firefox
| on Android, not to mention Chromium on Linux.
| rqtwteye wrote:
| Nice! I was just there last week. Are there any efforts to scan
| the ground in places like Saqqara? It seems there is still a ton
| of stuff left in the ground.
|
| After seeing the pyramids and Luxor I am amazed at the scale and
| precision the Egyptians were building such a long time ago. Truly
| impressive.
| lukehollis wrote:
| That's awesome! I wonder if we crossed paths. Are you still in
| Eg? I've worked with projects at Saqqara and Luxor too, some of
| it is public and being used for education if it's interesting:
|
| Luxor Temple:
| https://luxortemple.mused.org/en/guided/178/luxor-temple
| c7DJTLrn wrote:
| Egyptology is so fascinating. When I was in primary school, the
| teacher did a really special lesson I'll never forget. The
| classroom was decorated like a tomb - the windows were blacked
| out and the tables were arranged in a way that we had to crawl in
| to start the lesson. We went through puzzles and explored
| pyramids on the projector. When some pupils were distracted by
| the table tunnel, the teacher stayed in the character of an
| archeologist and warned them to keep away for the tunnel may
| collapse at any moment. Now that's teaching.
| lukehollis wrote:
| Sounds like a great teacher! Not in Egypt but elsewhere a
| tunnel collapsed on me + 4 really incredible people on site
| helping with the scan. We dug ourselves out with our hands.
| Your teacher knew the real deal.
| c7DJTLrn wrote:
| She was very good at her job.
|
| Glad you made it out, wow. What a story.
| sneak wrote:
| What is the reason that Mixpanel and GTM are on this page? Is
| there a specific reason that such invasive tracking is required
| for an educational resource that does not generate revenue?
| mikebonnell wrote:
| They likely use some of the metrics to continue to get grant
| funding. You gave us $1m in grant money which we used to
| produce this webpage which has XXX millions of views. I'm sure
| other tools would suffice but given it's a project at Harvard,
| they may have institutional requirements.
| [deleted]
| alberth wrote:
| My takeaways:
|
| - From the entrance, all the way to the Grand Gallery ... it
| doesn't not feel like that was an intended entrance path. It
| gives the vibe of an auxiliary tunnel (not main path).
|
| - It's extremely "industrial". For what historians claim to be a
| monument, there's not a single hieroglyphic that I saw. It was
| the opposite of being ornate or lavish.
|
| - There's numerous deep groves intended to guide something large
| carved into the granite in many of the larger spaces (like
| immediately outside the Kings Chambers). Similar to what you'd
| find in a Steel Mill to guide large hot containers. It appears as
| if this was a structure used to _manufacturer something_ (not a
| tomb of a pharaoh). See previous point.
|
| Note: I'm not trying to spread rumors or create speculation. Just
| my observations from viewing this incredible 3D scan (much
| appreciation to the author for capturing this incredible marvel)
| salty_biscuits wrote:
| It's really old and has a lot of history post ancient Egypt a
| fair bit of it abusive, e.g. it looks like the sphinx's nose
| was chiselled off (not shot off with a cannon by Napoleon in
| the myth). People used to climb all over the great pyramid,
| etc. It's cool to go to the more recently discovered places
| like the valley of the queens to see the paint and
| hieroglyphics. All the stuff near Cairo has had more human
| interaction.
| LiamPa wrote:
| It's a power station, have a read of 'The Giza Power Plant'
| hfo wrote:
| > For what historians claim to be a monument, there's not a
| single hieroglyphic that I saw.
|
| It's the pyramid of Khufu, 2nd king of the 4th dynasty. None of
| the pyramids of the 4th dynasty have hieroglyphs. That slowly
| came into fashion in the 5th (or 6th? Too lazy to check)
| dynasty. If you measure ancient egypt from the 1st dynasty to
| Cleopatra, you come up with roughly 3000 years. This pyramid
| was built around the year 500 on that scale. There is not much
| writing left at all from that period. The palermo stone being
| one example: https://en.wikipedia.org/wiki/Palermo_Stone The
| most exiting recent find is the diary of Merer:
| https://en.wikipedia.org/wiki/Diary_of_Merer It seems he was a
| middle manager in transporting stones to this, Khufus pyramid,
| which makes his writings the closest you can get to an eye
| witness account of the construction.
| mdswanson wrote:
| It says "We're entering today through a Robber's Tunnel, a
| tunnel that some believe was created in 820 AD by Caliph al-
| Ma'mun, when he was trying to break into the pyramid."
| alberth wrote:
| Dumb question: if this is the robbers tunnel - why haven't
| modern day archeologist excavated the main pyramid entrance?
| hfo wrote:
| They have. It's a few levels higher. The robbers tunnel is
| easier to reach from the ground, so it became the main
| entrance for visitors for centuries now.
| nosianu wrote:
| > it doesn't not feel like that was an intended entrance path
|
| The accompanying text says the entrance was made by robbers
| forcefully breaking through some random section because they
| did not find the true entrance. So they dug until they hit the
| existing tunnels.
| Razengan wrote:
| Damn even after thousands of years the pyramids keep getting
| interesting!
| hfo wrote:
| The floor of the entrance is exactly at the right height, a
| little to the right of a crucial element to get access to the
| upper chambers: The crossing between the ascending and
| descending passage. This is where the ascending passage was
| blocked - you can see one of the large granite blocks still
| in place today. The (presumably) robbers goal was to get
| behind those granite blocks. This passage leads straight on
| to the crossing, then taking a sharp left turn just right
| behind the blocking. Whoever built this path must have known
| where it should lead to. That makes the story that Al Mamun
| did it so unlikely. He might have enhanced an existing
| tunnel, but there is no conceivable reason why he should have
| built it in the first place. Here is a rough illustration,
| the dark brown being the robbers tunnel:
| http://www.benben.de/Architektur/Cheops/Grafik/Mamun3.jpg
| gehwartzen wrote:
| My first reaction was one of astonishment that the robbers
| tunnel is so close to the actual entrance and tunnel. If just
| some random location was chosen that was quite lucky. After
| some googling I guess there's still a lot of uncertainty.
|
| Here's an interesting article:
|
| https://www.smithsonianmag.com/travel/inside-the-great-
| pyram...
| green-eclipse wrote:
| This is amazing! Incredible work! Thank you for doing this
| project.
|
| FYI I found a typo - the word "cuts":
|
| > It's 750 by 750 feet at the base and is made of over 2 million
| large, limestone blocks _cuts_ from the surrounding area.
|
| Also - from one of the angles shown, it looks like there's a golf
| course next to the pyramids? Not at all what I expected!
| lukehollis wrote:
| Thanks! And haha yes, definitely visit Giza someday--it's an
| incredible place to work.
| groffee wrote:
| There's a pizza hut across the road as well lol
| erickhill wrote:
| Very cool. I wish there was a 2D "dungeon crawler" map overlay of
| some kind so I could see where I am and what direction I'm facing
| as I progress into the structure. I start to lose my bearings.
|
| I was fortunate to go inside the pyramid as a child in 1980 when
| I was 9. I remember it feeling quite claustrophobic at the time,
| and I wasn't exactly big. Once inside you quickly lose the scale
| of the thing (or at least I did).
| anthk wrote:
| I want the reverse. Dungeons generated a la street view for a
| Nethack ascii map instead of tiles. As the game it's turn
| based, it would be usable after all even underpowered machines.
| erickhill wrote:
| Hah! That would be pretty interesting.
|
| I guess the inbetween would be DungeonHack...
|
| Be pretty wild to have a 3D interactive Rogue based on
| GeoGuessr realism.
| anthk wrote:
| Like Noegnud but photorealistic:
|
| https://nethackwiki.com/wiki/Noegnud
|
| https://commons.wikimedia.org/wiki/File:Noegnud.jpg
|
| With a Street View design (with overlapping monsters/object
| per "tile", nothing too complex for a shader), the game
| would be incredible nice for newcomers. And, yes, I prefer
| ASCII/UTF8.
| mkl wrote:
| This is great!
|
| I noticed a few apostrophes missing in the captions in "King's
| Chamber" and "Queen's Chamber".
| lukehollis wrote:
| Thanks for visiting&feedback--will get this fixed!
| Keyframe wrote:
| Fantastic! Thanks for this. Do you plan to open the raw data you
| collected for others to tinker with it?
| hfo wrote:
| For anyone interested in the great pyramid, here is a book
| recommendation (free), IMHO it surpasses even the gold standard
| "Maragioglio and Rinaldi" (M&R). Unfortunately on that horrible
| academia.edu site:
|
| https://www.academia.edu/72468121/The_Great_Pyramid_Part_1_A...
|
| https://www.academia.edu/75544329/The_Great_Pyramid_Part_2_A...
| blobbers wrote:
| AMAZING! Will try it out on a headset, and show it to kids who
| have been asking mummy questions.
|
| Thank you so much!
| lukehollis wrote:
| Thanks for trying it out! Would love feedback about how
| everything works in the headset
| ChrisMarshallNY wrote:
| That's cool!
|
| Thanks for sharing it!
| monksy wrote:
| My work network classifies this site as adult content.
| jstanley wrote:
| This is superb! Great work, a really fascinating tour, thanks so
| much for doing this & for sharing.
| easytiger wrote:
| Incredible. Going through this gave me similar sentiments to when
| i first used my school library copy of Encarta 98.
|
| Question: there are some blurred out areas, how come?
|
| e.g. https://imgur.com/a/6Ca5EYG
| mkl wrote:
| I think it's just that the scanner doesn't look straight up.
| jackcarter wrote:
| Camera limitation - it doesn't capture a full sphere. That's
| exactly the spot where I also noticed it.
| easytiger wrote:
| ahh, of course. thanks
| kovek wrote:
| I really like the tool. However, I just hit an issue... Somehow,
| I was dragging in the view, and it did a text select on the whole
| view. Now, everything is highlighted blue as if I selected it,
| and I don't know how to de-select it.
| kridsdale2 wrote:
| That sounds more like a browser issue.
| gunapologist99 wrote:
| Usually you can single-click on any non-link text (which
| admittedly can be hard to find in an SPA!) to un-highlight the
| selected text.
| lukehollis wrote:
| Thanks for the feedback--and I'll test and try to replicate.
| petargyurov wrote:
| That is insanely cool.
|
| The dollhouse view is nice. It would be great if you could see a
| 2D schematic of where you are in the pyramid as you're exploring.
|
| Incredible job!
| citrons wrote:
| Actually liked that it lacked a minimap. Got a better sense of
| scale. After going trough most of the tunnels and getting stuck
| and kings chamber there, couldn't crawl back, I zomemed out and
| was shocked by the scale of the tunnels.
| whoopdedo wrote:
| Someone lost their hat to the right of the entrance.
|
| I was clicking around for quite a while before I realized I could
| use WASD+arrows.
| lukehollis wrote:
| Ah! I think that might've been one of the guard's. I love that
| Matterport added the WASD+Arrows.
| imagineerschool wrote:
| The 'mystery' chamber in the base of the Great Pyramid is a
| functioning pulse pump - this researcher measured it and built a
| scale replica:
| https://sentinelkennels.com/Research_Article_V41.html
|
| The mechanisms of the Great Pyramid can only be conjectured about
| in the present day because of the extensive damage to the
| structure, but it's pretty clear it served /some/ purpose.
| hfo wrote:
| > but it's pretty clear it served /some/ purpose.
|
| One would think the sarcophagus in the center would give away
| what that purpose could have been...
| [deleted]
| GNOMES wrote:
| Site seems based on selling these custom tours, is there a link
| to all of the existing (free) ones?
| mwidell wrote:
| Wow! After going through this tour, I feel like I don't need to
| visit in real life. I can imagine an "IRL" tour wouldn't be as
| good, with queues, lots of other tourists, etc. This was the best
| virtual visit experience I have ever had, to any real world
| place. Kudos!
| nimrody wrote:
| Beautiful! Thanks for doing this work.
|
| Can you explain a bit on the process that was used to create
| this? How do you determine your position inside the pyramid
| precisely?
|
| (would make for a great dungeon-style game :)
| joshvm wrote:
| I've used the BLK 360 before so some comment here. Essentially
| you scan at various points within the volume of interest, e.g.
| you walk around, place the scanner, scan, repeat. Each scan
| takes a few minutes at high angular resolution. Leica provides
| software called Register (or Cyclone) to match the scans
| together. Because you generally don't have GPS (the BLK doesn't
| have a GPS onboar and GPS is anyway much more inaccurate than
| the scan resolution - metres versus millimetres), the software
| has to do some kind of feature matching to stitch the scans.
| You get "links" between adjacent scanning points, and then you
| do a big optimisation pass to combine the scans.
|
| This scan matching is by far the most difficult and time
| consuming bit. Probably OP had to manually align the scans as a
| first pass and then the software takes over using some
| algorithm like ICP (iterative closest point).
|
| This is still only "internal" (i.e. scans are correct relative
| to each other, but you don't know where the full scan is) and
| you'd have to combine with an external reference point to geo-
| locate in the world. Doesn't really matter for this because
| you're just viewing the pyramid on its own, and you're not
| overlaying on a map. If you were, then usually what you have to
| do is take several ground control point (GCP) that are known
| with high accuracy and then reference that in the scan. You
| could geo-reference these using an RTK GPS or something, but
| it's quite difficult to get world coordinates at the millimetre
| scale and it rarely matters if you're that precise as long as
| the scan itself is consistent.
|
| This video from Leica shows the full workflow for a typical use
| case (scanning a house with indoor and outdoor points). Note
| the point where they link inside and outside, around 16 mins in
| https://www.youtube.com/watch?v=AV0LPKowOXU
| bambax wrote:
| Complete newbie here, but wouldn't it be possible to affix
| some marks on the walls to help with the stitching
| afterwards?
| 0_____0 wrote:
| When working with LIDAR scanning systems (Total systems
| etc) that generate a point cloud, this is exactly what
| you'd do. Affix a target or fiducial (a pattern you can
| apply to a surface that shows up in the scan, either
| because it's very reflective or because it has a high
| contrast pattern on it), and use those as reference points
| to stitch your clouds together.
| loufe wrote:
| Awesome, thanks for sharing. We use cyclone for 3D CMS scans
| of open holes at the mine I work at. Cool to see other use
| cases. Were you using 3DReshaper before the rebranding?
| lukehollis wrote:
| Thanks for visiting! I'll put together a blog post, but it was
| similar to the process in my previous work here:
| https://blog.mused.org/digitizing-luxor-temple-a-virtual-fie...
|
| Similar except I captured with Matterport Capture and then
| downloaded and aligned data captured with BLK after in Cyclone
| so that we'd have both sets.
| lukehollis wrote:
| Thanks for the feedback! Didn't know if people would like this.
| If this is interesting, and you'd like to learn more about
| Ancient Egypt, here are a few more sites that I've worked at:
|
| Luxor Temple: https://luxortemple.mused.org/en/guided/178/luxor-
| temple Tomb of Queen Meresankh III at Giza:
| https://giza.mused.org/en/guided/4/tomb-of-queen-meresankh-i...
|
| I've mostly been working around the Mediterranean, Central
| America, and Eastern Asia. I'll publish articles on our blog as
| the next come out in the future https://blog.mused.org/
| ndr wrote:
| I'm going on a tour in Luxor & other places in Egypt tomorrow.
| This amazing, thank you!
| lukehollis wrote:
| Thanks for visiting! Let me know if you have any feedback or
| questions
| hi wrote:
| @ndr I was just there earlier this year and would like to
| recommend a guide named Mohamed [redacted] to you (and anyone
| else who is visiting that area) who we met there and spent
| two days with in Luxor (Karnak & Luxor Temple) and driving
| down to Aswan (via Esna, Al Sharawna, El Kab and Edfu) from
| Luxor. Mobile: [redacted]
| zacharycohn wrote:
| maybe don't post someone's phone number on the public
| internet without permission?
| atdrummond wrote:
| This guide advertises his number for this purpose, as do
| most of the local guides. No worse than it being posted
| on Yelp, LonelyPlanet, etc.
| alpha_squared wrote:
| I was just there a couple weeks ago and, while Mohamed is
| an extremely common name, chances are it was the same
| Mohamed that was our tour guide as well. He's honestly
| phenomenal and (now) a good friend who I keep in touch with
| regularly.
| jjallen wrote:
| By "worked at", what exactly do you mean?
| [deleted]
| qwertox wrote:
| When I was in school, I visited my granddad during summer
| holidays. This was right before I would have history class for
| the first time at school, and my granddad showed me a book my
| dad gave him as a present, which was about the Pyramids in
| Egypt. I was fascinated by the book, and got to know that this
| is what history is about, so I got really excited.
|
| Holiday was over, school began, first hour of history class
| began. New book, looked at it, I think the first two pages were
| on Egypt. The topic took less than a class. I felt like "Wait,
| we can't go on, there's so much to learn about this" and
| immediately got disillusioned with history class.
|
| The site is awesome, it is what those first history classes
| should have been. It almost feels like you're there, thanks to
| the high resolution textures. And the guided tour feels so
| personal, as if there's someone with you at your site showing
| you the place. It really is a gift.
|
| Thank you.
| UberFly wrote:
| Beautifully written comment.
| Abundnce10 wrote:
| I loved the tour! You did an amazing job.
|
| I thought I should pass along that I found a misspelling. You
| wrote "sarcophaus" instead of "sarcophagus" in the text within
| the King's Chamber.
| pencilguin wrote:
| Properly, "box". There is no evidence a body was ever in it.
| ant6n wrote:
| Is a car only a car once somebody drives it?
| lukehollis wrote:
| Thanks for pointing this out!
| Balgair wrote:
| Wow! Just wow! I really hope to see it in person now!
|
| Quick question: Do you wear the Indiana Jones hat while scanning?
| Because I know I couldn't pass up that chance.
| lukehollis wrote:
| I listen to the Pyramid Song by Radiohead on headphones :)
| couldn't pass up either.
| ErneX wrote:
| Crashes on my iPhone 13 Pro running latest iOS version / Safari.
|
| Update: turning off content blockers solves the crashing issue.
| whycombinetor wrote:
| This is really cool. Free explore is really immersive. The guided
| tour would be better if the movement was on rails instead of
| glitching through walls though.
| lukehollis wrote:
| Thanks for the feedback--I'll adjust the tour points and
| transitions in the future to try to prevent this.
| dandigangi wrote:
| This is so cool. I went to the pyramids last Xmas for the firs
| time. Great project. Sincerely.
| lukehollis wrote:
| Cheers and thanks for checking it out. I'm super curious: how
| does the virtual tour compare to your experience on site?
| soared wrote:
| Incredible! I was under the impression there were tons of
| passages and chambers that were intricate, thank you for teaching
| me otherwise!
| kodah wrote:
| This was a really cool experience. Thanks for putting this
| together.
| dwringer wrote:
| This is absolutely fantastic, the only thing I note with some
| sadness is that the well shaft leading down from the entrance
| tunnel of the Queen's Chamber is not mapped. The grated-off hole
| leading down into it is visible and the model does show a cavity
| there, but there is also a chamber (called the "Grotto" in old
| diagrams) partway down which is said to have been at the top of
| the limestone mound on which the pyramid is built. Was it not
| permitted to access this area?
| hfo wrote:
| EDIT: I was wrong, it's all there. Amazing!
|
| Also missing: The horizontal passage, the queens chamber, the
| descending passage, the lower chamber and the passage to the
| relieving chambers of the kings chamber. They're all not
| accessible for tourists. The tour covers what you would see as
| a normal visitor (not ie an archeologist with special
| permission).
| dwringer wrote:
| That's not entirely true - both the queen's chamber as well
| as the descending passage are indeed mapped (though the very
| upper part of the descending passage is blocked). There's a
| note when entering the descending passage: "This is normally
| blocked off to visitors, but we can visit in our tour!"
|
| If you didn't get to them by clicking through the photos, you
| can click the lower left "Dollhouse mode" icon to get a 3d
| viewer, in which these things are visible. They are both
| included on the "guided tour" mode, however, if you just load
| the page and click through the prompts in the middle.
|
| I was hoping that the OP might reply to provide more insight
| on what specific restrictions there might have been,
| considering some special permissions appear to have been
| granted. It presents as a bit of a mystery since the site
| claims "for the first time ever, explore the full interior"
| and makes no mention of any missing areas.
| flyosity wrote:
| This is truly incredible, I can't wait to show this to my kids
| after school. Thank you so much for doing this work.
| UberFly wrote:
| Agreed. My only comment is just how cool this is. Wow.
| fipar wrote:
| This is amazing, thanks for sharing!
| ibdf wrote:
| I'm impressed with the sharpness and the amount of detail you
| captured and the web tour transitions are super smooth too. Great
| work.
| _joel wrote:
| Awesome work! I've been in there and one of the things missing is
| the change it humidity and temperature that hits you, maybe on
| the next revision ;)
| lukehollis wrote:
| Uff too real. I worked up a sweat on this one
| spencercwood wrote:
| Dang this is rad, thank you for sharing!
| tmilard wrote:
| It's nice. Maybe the best matterport's example I have seen so
| far... The 3D in the transitions [of two 360 photos] are really
| good and the pixel quality is great.
|
| But still... The very limited part of Matterport is that it is
| "mostly" a series of 360 photos.
|
| Now, because a pyramid is mainly a long corridor, you do not see
| too much those limitations.
|
| So great.
|
| Thierry, developper of https://free-visit.net/
| arnaudsm wrote:
| It's not only 2D 360, there's full 3D photogrammetry. Click on
| the dollhouse button on the bottom left.
| lukehollis wrote:
| I hear you--I think this is limitation is useful for
| bandwidth/loading time constraints.
| trhoad wrote:
| If you open the image modals, and then click next, I see a
| blurred screen and cannot progress forward/back.
|
| react-dom.production.min.js:209 TypeError: Cannot read properties
| of undefined (reading 'indexOf') at _l.render
| (ModalImage.tsx:79:21)
| lukehollis wrote:
| Thanks! Will get a fix out for this
| terhechte wrote:
| This is really really cool! I enjoyed the explanations as well as
| the fantastic images
| lukehollis wrote:
| Thanks for visiting!
| sizzzzlerz wrote:
| Such a small volume of rooms and tunnels compared to the volume
| of the pyramid itself. The labor required is unimaginable.
| thrdbndndn wrote:
| This is incredible. The image quality is also super high.
|
| Just a quick question out of curiosity: how easy is it to get
| access of it? Or maybe you worked/collaborated with other orgs to
| makes it easier?
| HPsquared wrote:
| Semi-related, the Great Pyramid was also scanned using muon
| radiography, by which a "big void" was discovered [0]. Muons can
| penetrate through a lot of material, so they can see through very
| large, thick things like the pyramids.
|
| Muon tomography was also used to scan the Fukushima reactors [1]
| and see where the fuel ended up.
|
| [0] https://arxiv.org/pdf/1711.01576.pdf [1] https://www.world-
| nuclear-news.org/RS-Muons-suggest-location...
| anshumankmr wrote:
| A void? Is it another chamber? I have so many questions. Though
| from the images, it doesn't seem like a chamber.
| https://www.livescience.com/scan-great-pyramid-of-giza
| david927 wrote:
| A void. It looks uneven, not like a chamber, but quite large.
| zikduruqe wrote:
| Stone contractor promised to deliver 1000 blocks, only
| installed 753 blocks. Pocketed the difference.
| GuB-42 wrote:
| That contractor must have had really big pockets...
| zikduruqe wrote:
| Thanks Dad.
| kragen wrote:
| That's what I think whenever I play Minetest. My
| inventory can fit 40 stacks of 99 cubic meters of stone:
| 3960 cubic meters, about 10000 tonnes. I guess Sam's
| backpack is bigger on the inside than the outside...
| canadianfella wrote:
| klausjensen wrote:
| I bet it's the aliens' server-room.
| anshumankmr wrote:
| Is there any non invasive way to see the interior of the
| chamber? I hope we are aren't gonna leave it be.
| LeifCarrotson wrote:
| To whom do you refer to with "we"?
|
| I hope we leave it be until we develop the tech to
| measure it non-invasively.
|
| The tech available to Napoleon's Egyptologists or the
| British in the 1800s would not have allowed him to do it.
| They would have picked up anything they could carry and
| brought it back to Room 4 in the British Museum. Our tech
| in 2022 does not currently allow us to see the interior
| of the chamber more precisely than "there's a void
| there."
|
| It's likely to not have been breached for millenia, it
| would be positively criminal to drill to it.
|
| I say wait a couple hundred years until some future
| archaeologist will have a neutrino or muon scanner with
| sufficient resolution to read the hieroglyphics. It'll
| keep.
| anshumankmr wrote:
| By "we", I meant society and the authorities/academics
| who are researching this.
|
| I don't there is a way in there without some amount of
| drilling. I was personally thinking of a fibre optic
| camera that could be somehow sent in there but there
| would be still some kind of damage caused to the Pyramid,
| though I am no expert on this topic at all.
| kridsdale2 wrote:
| In a few hundred years geopolitical balances could be
| wildly different than today: Egypt could somehow come to
| dominate as a new global empire with Cairo as it's
| capital, opening it to the vulnerability of a nuclear
| attack, removing the pyramids before we ever get to
| develop the scanning technology.
| mwint wrote:
| I wonder... _would_ a nuclear attack wipe out the
| pyramids? Not one directly on them, but centered on the
| nearby city?
| mlsu wrote:
| Now you have me thinking.
|
| What if we nuked the pyramids? I'm not saying we _should_
| , but I am saying like, you know, maybe.
|
| Nahhhh, we would never do something like that. It would
| be a travesty.
|
| But like, maybe, we could just like, ynkow, just drop 1
| nuke on the pyramids. Just as like, a little thing.
|
| No, no way would we do that. Neeeever would we do that.
|
| But just 1 nuke? right on top? That would be, that would
| be something. It would be _interesting._ I mean the
| pyramid is so symmetric. It 's one of those things with a
| mythical power. Same thing with a fission weapon!
| Mystical power. It would take just 1 nuke going off right
| on top of the pyramids for like -- _something crazy_
| might happen.
| pencilguin wrote:
| Giant alien robots might wrestle each other while
| clambering around on it. It has happened before.
|
| (Cf. "Transformers 2")
| jakeinspace wrote:
| The Giza complex is right next to Cairo. Actually, it
| might be within the city limits. Far enough from the
| downtown core to survive a single moderate nuclear blast
| I would think.
| LeifCarrotson wrote:
| While the postcards show the pyramids standing in the
| desert, the city comes to within ~300m of the base.
| Downtown is only 10km from the pyramids.
|
| https://i.imgur.com/eKq7Zcz.jpg
| simonh wrote:
| Cryopod/Egg chamber.
| spullara wrote:
| Wild. I was speculating about this in 2003 on my blog. Very
| interesting news.
|
| https://javarants.com/deconstructing-the-pyramids-76081876b3...
| fipar wrote:
| Thanks for those links.
|
| This virtual visit mentions that, because it shows a similar
| experiment being done now (I suppose they're trying to find if
| there are more voids that could be hidden chambers)
| ryanmarr wrote:
| Where are the puzzles that open the door to the linking book?
| club_tropical wrote:
| This is exactly what is needed in archeology. High quality
| imaging & survey, not historical speculations tied up with this
| or that professor's ego-driven "school of thought".
| iancmceachern wrote:
| Exactly, share the facts not interpretations
| neoneye2 wrote:
| Well made. Amazing to explore. Much appreciated.
|
| Tested in my Firefox 106.0.1 on macOS Monterey 12.6, and it works
| great.
| site-packages1 wrote:
| I am amazed by this. I've been playing with a 3D scanning app on
| iPhone as a total amateur and totally new to the mode of
| collection and it truly produces amazing results with only iPhone
| lidar.
|
| Scaniverse if you're curious.
| ridgeguy wrote:
| The new version claims not to even need the LIDAR.
| lukehollis wrote:
| Very cool, I know Scaniverse! I think the lower bar to entry
| for digitization has already been transformative for
| preservation, conservation, and site education at heritage
| sites like these.
| andybak wrote:
| Thank you.
|
| Is the scan data available and if so - under what licence?
| phasers wrote:
| This gave my PC a BSOD :(
|
| Details: Windows 10, Firefox
|
| Stop Code - DRIVER_IRQL_NOT_LESS_OR_EQUAL
|
| What Failed - nvlddmkm.sys
| kridsdale2 wrote:
| Update your nvidia graphics driver.
| smusamashah wrote:
| You should try processing your photo dataset with a NERF based
| tool. They are much better at rebuilding the 3D structure from
| set of images.
|
| EDIT: There is this for example https://github.com/nerfstudio-
| project/nerfstudio
| yaddaor wrote:
| That's inventing details that don't exist in the data though,
| correct?
| lukehollis wrote:
| Thanks so much--I'll try this out!
| kridsdale2 wrote:
| I want the future version of Google Earth or whatever to be the
| whole globe at a pixel resolution with this kind of technology.
| cush wrote:
| Aaaaand the site crashes in ios safari
| timbit42 wrote:
| That doesn't mean there is a problem with the website.
___________________________________________________________________
(page generated 2022-10-27 23:00 UTC)