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100 Million Pixels of Virtual Reality

Roland Piquepaille writes "It's ironic that Iowa State University (ISU) announced a big upgrade of its C6 virtual reality (VR) room the same day as SGI filed for bankruptcy. Back in 2000, this 10x10x10 foot room was powered by SGI Onyx2 computers. The new version of this six-sided VR room will use 96 graphics processing units from Hewlett-Packard. And with its 24 Sony digital projectors, the researchers at ISU will immerse themselves into images of about 100 million pixels in the most realistic VR room in the world. Of course, this upgrade is not cheap. But with this $4 million addition, this new C6 should lead to new advances in urban planning, genetics, engineering or unmanned aerial vehicles."

190 comments

  1. Thats not all it will lead the field in by 192939495969798999 · · Score: 4, Funny

    (insert obligatory pr0n reference here)!

    100 million pixels of virtual pr0n... nope, no way to hide that at work!

    --
    stuff |
    1. Re:Thats not all it will lead the field in by stiebing.ja · · Score: 1

      (insert obligatory pr0n reference here )!
      here you go...let's see how the VR room looks after that...

      --
      I lag
  2. New Advances in Genetics, eh? by bwcarty · · Score: 3, Funny

    Is that their slang for VR porn?

    1. Re:New Advances in Genetics, eh? by Niet3sche · · Score: 2, Insightful
      Is that their slang for VR porn?

      No, this concerns real genetics - primarily agricultural typing and visualization. And, yes, I am here at ISU.

    2. Re:New Advances in Genetics, eh? by ill_conditioned · · Score: 2, Funny

      Mod parent "-1 spoilsport" :( Went off and crushed my hopes and dreams...

    3. Re:New Advances in Genetics, eh? by Anonymous Coward · · Score: 1, Funny

      For: "No, this concerns real genetics - primarily agricultural typing and visualization. And, yes, I am here at ISU."

      Read: "Yup, that's why we've got wipe clean floors. I'm here at ISU until I've got forearms like Popeye."

    4. Re:New Advances in Genetics, eh? by WCD_Thor · · Score: 1

      Is what slang for VR porn? If your asking if pr0n is, then yes and no, pr0n is porn, not just VR porn.

    5. Re:New Advances in Genetics, eh? by OptimusPaul · · Score: 1

      do you ever read the subject line?

    6. Re:New Advances in Genetics, eh? by juliao · · Score: 1
      Is that their slang for VR porn?
      No, this concerns real genetics - primarily agricultural typing and visualization. And, yes, I am here at ISU.
      And what part of porn isn't real genetics, would you say?
      Maybe you should go out more...
  3. Cheap by glenrm · · Score: 0

    There has got to be cheap way to do this at home. I remember seeing Quake 3 on like 24 monitors, if you used projectors you should be able to do this cheaply and maybe better...

    1. Re:Cheap by rolfwind · · Score: 1

      You could probably do it on the cheap, but better? These people aren't throwing out money for some half-assed system.

      OTOH, I don't see any reason why a person couldn't do this on the cheap and have something that's a few years behind (but since it's your own personal one, it's still cool). Hey, it may even be better than the one they are upgrading from 2000!:)

      They used a 10 foot x 10 foot room. No biggie, practically a big walk-in closet. Then come some projectors and computers with video cards driving it. The biggest challenge would be software to sync it all and actually make it work together. Not sure about the options out there, but I imagine it would be doable.

      I'd imagine a mouse and keyboard would be out of the question though, for most interaction. So what, then?

    2. Re:Cheap by antek9 · · Score: 1

      Hm, 24 monitors, right? Not exactly MY definition of cheap, but there you go... More adequately something like three two four good projectors powered by a small yet powerful cluster is what I'd suggest.

      Anyway, welcome to the holodeck!

      --
      A World in a Grain of Sand / Heaven in a Wild Flower,
      Infinity in the Palm of your Hand / And Eternity in an Hour.
    3. Re:Cheap by kfg · · Score: 1

      There has got to be cheap way to do this at home.

      Yeah, I can give you about 80% of that for only half price.

      KFG

    4. Re:Cheap by Anonymous Coward · · Score: 0

      The Wii controller

    5. Re:Cheap by cr0sh · · Score: 2, Informative

      Actually, the CAVE room is a room inside a much larger room. Some space is saved by using mirrors and such to fold the optical path of the projectors, but sometimes this isn't desireable, as mirrors cause light loss (some of the light is absorbed by the mirrors - mirrors aren't 100% reflective). Things get really tricky if you are trying to project imagery on the top (ceiling) or bottom (floor) of the CAVE cubical...

      --
      Reason is the Path to God - Anon
    6. Re:Cheap by Anonymous Coward · · Score: 0

      The Wii controller, of course!

      (Well, theoretically, a remote thing like that would work, but I don't know what would be involved it making it know what's going on.)

    7. Re:Cheap by reed · · Score: 2, Informative

      wireless mice designed for people giving powerpoint presentations are a nice cheap solution. E.g: http://www.logitech.com/index.cfm/products/product listns/US/EN,crid=1999,categoryid=371

      If you find one that's not wireless, it might be a whole lot cheaper.
      Also I used to have a finger mouse I got for like 2 bucks that had a little trackball on top for the thumb with the mouse button as trigger, but lost it.

      If you have some time and expertise, you can do some motion tracking with webcams. The lower the resolution, the faster, actually!

      For software though I have no choice but to selfishly invite people to join the interreality project (http://interreality.org) which can't do a CAVE out of the box but could if you synced up several clients (one for each projector) -- not hard, we did it with an older version of our software.

    8. Re:Cheap by SpanishArcher · · Score: 1

      I sooo wanted to be the first one to come up with the holodeck comparison. I made a /. account practically just for this. Anyway, that's it. Computer, delete character Antek. "unable to comply. He's not part of the simulation" what the hell..Computer, exit..I'm outa here....:)

      --
      640KB of virtualized ram will be enough for everybody
    9. Re:Cheap by reed · · Score: 4, Informative

      If you're doing it on the cheap and only have three or four projectors, you don't need much of a cluster, just a three or four networked computers. Or, use two dualhead computers.

      You'll have a small amount of lag in the syncronization (network + OS + application software) but with some tweaking of the OS network configuration, or using some insanely fast system rather than a network (shared memory backplane?), you might get it to a few ms?

      If you want frame-by-frame synchronization you need some specialized equipment driving the projectors, stuff like this: http://www.es.com/products/image+generators/index. asp

      (Anyone making a homebrew CAVE want to try using http://interreality.org/ VOS software in it?)

    10. Re:Cheap by LookoutforChris · · Score: 1

      Sure there is, buy an Onyx2 and get some projectors. They can be had from anywhere between $0 and a few thousand dollars depending on config/circumstances. If you're lucky you can find one in a dumpster. You can find some Onyx3x0/3x000 on the market (most are still chugging along with their original owners) but the cost is very high .

      A single pipe with a DG5-8 can drive up to 8 monitors, not sure of the res./monitor you'd get though. I only have specs for the InfiniteReality4 (IR4) but 16 pipes gets you 133 million pixels, I think this is the same for IR3 was well. Realistically you'd only need at most one pipe per wall of your CAVE.

      There's a port of Quake, Quake II, and QuakeIII for SGI, I have it on my O2 :)

      Here's a very cool page, this guy actually works with a CAVE (and an Onyx2) and he likes Quake! (Also, checkout the wall this guy has access too!)

      It's a sad story about SGI, I think even if they survive long term as a company that the "G" in their name is already dead.

    11. Re:Cheap by Skreems · · Score: 1

      They're upgrading FROM an Onyx4 for a reason. The thing is a pain in the ass to work with, and can't push 1/10th the polys of newer systems with modern graphics cards.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    12. Re:Cheap by I(rispee_I(reme · · Score: 1

      I sooo wanted to be the first one to come up with the holodeck comparison. I made a /. account practically just for this.

      Being as this story is "from the holodeck-wannabe dept.", I'd say your efforts were doomed before they began.

    13. Re:Cheap by LookoutforChris · · Score: 1

      Ummm the question was "how to do this cheap at home." It was not "what should the University do." What did you miss?

    14. Re:Cheap by LookoutforChris · · Score: 1

      A few more comments: I've used Onyx systems before and they are joys to work with. Oh, I also should mention that the summary says the University was using an Onyx2, not an Onyx4. And BTW, an Onyx4 uses (many) thoroughly modern ATI graphics cards. So I don't think there's anything in your post that's correct. Too bad there's no "-1 Wrong" moderation option.

  4. Drool by GmAz · · Score: 2, Funny

    Can I get some play time of World of Warcraft in there?

    --
    Click Click Bloody Click PANCAKES!
    1. Re:Drool by DanHibiki · · Score: 0

      five minutes in to a dungeon the party stops for a smoke break.

    2. Re:Drool by Idylwyld · · Score: 1

      I Don't know about WoW but they do have an awesome version of Doom for this thing.

      --
      "Secrecy is the Beginning of Tyranny" "No intelligent man has any respect for an unjust law" -Robert Heinlein
  5. Finally! by Firehed · · Score: 1

    A HUD for pretending to walk around town. No more reaching into the pocket to see what's playing. And the 21st century was such a letdown until now...

    --
    How are sites slashdotted when nobody reads TFAs?
  6. I need to get out more by Craptastic+Weasel · · Score: 0, Offtopic

    The first thing I thought of was how much fun it would be to play Battlefield 2 in this room... Mind you of the million of other actually useful purposes it has. Like pr0n.
     
    Wait...

  7. Nice picture of the room in TFA by plover · · Score: 2, Funny

    "That's no moon!"

    --
    John
  8. "/."-hype? by Anonymous Coward · · Score: 1, Interesting

    But according to Slashdot VR is useless hype.

    1. Re:"/."-hype? by Anonymous Coward · · Score: 0

      According to Slashdot, there are several bridges up for sale. Let me know if you are interested in some land, while you are at it ;-)

  9. That's not irony by Anonymous Coward · · Score: 0, Offtopic

    Irony is more like rain on your wedding day. Or maybe getting a free ride after you already paid. That kind of stuff.

    1. Re:That's not irony by spun · · Score: 4, Funny

      No, irony is kind of like bronzey or goldy, only with iron. Ironic is when you write a song about irony where none of the situations mentioned are in fact ironic at all.

      --
      - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
    2. Re:That's not irony by Anonymous Coward · · Score: 0

      Kind of like Swiss Cheese. This article doesn't end with the guy turning out to be Nixon does it?

    3. Re:That's not irony by complete+loony · · Score: 1

      I vaugely remember a comedians routine where he tried to make all of those situations really ironic. For example "It's like rain on your wedding day" became "It's like rain on your wedding day when you're getting married to a weather man and he picked the date".

      --
      09F91102 no, 455FE104 nope, F190A1E8 uh-uh, 7A5F8A09 that's not it, C87294CE no. Ah! 452F6E403CDF10714E41DFAA257D313F.
    4. Re:That's not irony by pcgabe · · Score: 3, Informative
      That would be Irish comedian Ed Byrn. Other examples from this routine are:
      No, there's nothing ironic about being stuck in a traffic jam when you're late for something. Unless you're a town planner. If you were a town planner and you were on your way to a seminar of town planners at which you were giving a talk on how you solved the problem of traffic congestion in your area, couldn't get to it because you were stuck in a traffic jam, that'd be well ironic: "I'm sorry I'm late, you'll never guess."

      A no-smoking sign on your cigarette break, that's inconsiderate office management. A no-smoking sign in a cigarette factory - irony. It's not a difficult concept Alanis. It's very rare you see a ironic no-smoking sign, although if you ever see one of those that say 'Thank-you for not smoking' and you are: fairly ironic.
      --
      Don't put advice in your sig.
    5. Re:That's not irony by d_54321 · · Score: 1

      What about a slashdot discussion about the latest advance in VR technology that devolves into a discussion about what irony is? Is that ironic?

    6. Re:That's not irony by Computerguy5 · · Score: 1

      What about putting advice in your sig advising not to put advice in your sig. Ironic?

    7. Re:That's not irony by pcgabe · · Score: 1
      What about putting advice in your sig advising not to put advice in your sig. Ironic?
      Intentionally so. ^_^
      --
      Don't put advice in your sig.
  10. At least ISU is spending wisely by zjl56 · · Score: 2, Interesting

    At least ISU is spending somewhat wisely,but I have heard of some really stupid purchases. Such as spending 3k for Graphics design computers for use as word processors. And you wonder why tuition is rising and extreme rates..

    1. Re:At least ISU is spending wisely by shudde · · Score: 5, Funny

      Such as spending 3k for Graphics design computers for use as word processors.

      Good to see your university is getting ready for Vista.

    2. Re:At least ISU is spending wisely by Anonymous Coward · · Score: 0

      Um... ISU is spending *wisely*? I work at ISU. This thing is a joke. I have yet to hear of a single use for it besides flashy demos and gratuitously "immersive" simulations. ISU's "HCI" program consists of finding cool new things to do with goggles and gloves. A renowned HCI expert came and gave a lecture on campus about data visualization and had to repeatedly refute suggestions that the be-all, end-all solution to visualization of high-dimensional data is a CAVE and a set of goggles.

      The VRAC guys run roughshod over the ME department as though what they're doing has anything but a tangential connection to the field, but because they can give the coolest demos, they get all the press, funding, and political power.

    3. Re:At least ISU is spending wisely by mikeisme77 · · Score: 1

      As an incoming HCI grad student (but one who isn't working with the CAVE--and coming from CS rather than ME), I agree whol heatedly that the end-all solution to visualization isn't a high def VR simulation. Multi-sensory perception, using force feedback, 3D sound, and possibly other senses (the military is currently experimenting with the use of the tongue as a super sensor to visualize battlefields at night) is a much better solution to fully incapsulating data. However, that does not invalidate the CAVE as a useful tool for other things, namely simulations--particularly for medical training (although here again, force feedback is EXTREMELY useful), military training/simulation, etc. The CAVE is useful for things that require full visual immersion. In addition, I was under the impression that much of the CAVE was funded by grants from the military, John Deere, and other sources (although I'm sure some of it still comes from ISU itself). While I'll admit I'm not a huge VR person, I do think it serves its purpose.

    4. Re:At least ISU is spending wisely by heinousjay · · Score: 1

      Somebody's boring pet project didn't get funded this, methinks.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
  11. This looks really good, but also such a waste by LiquidCoooled · · Score: 2, Interesting

    There is nothing this room can do that a decent set of VR goggles can achieve.
    The goggles would also have the benefit of being runnable on relatively standand class hardware.

    I mean, this thing has to produce a spherical projection for every single point in the viewers space, its got to be crunching far too much data.

    I personally don't see the benefits of this virtual magic carpet ride for the outlay required.

    --
    liqbase :: faster than paper
    1. Re:This looks really good, but also such a waste by GrEp · · Score: 1

      The engineers eat CPU on it for computational fluid dynamics codes, so it's not all waste.

      --

      bash-2.04$
      bash-2.04$yes "Don't you hate dialup connections?"| write USERNAME
    2. Re:This looks really good, but also such a waste by Niet3sche · · Score: 4, Insightful
      There is nothing this room can do that a decent set of VR goggles can achieve. The goggles would also have the benefit of being runnable on relatively standand class hardware. I mean, this thing has to produce a spherical projection for every single point in the viewers space, its got to be crunching far too much data. I personally don't see the benefits of this virtual magic carpet ride for the outlay required.

      There actually are things you can do in the C6 that you cannot do with goggles. For one - and to name something that I know is implementable and implemented - you can track body posturing and position within the C6 to make the experience more engaging/real. Any pictures just do not do this justice; the "seams" shown in the picture are not nearly as obvious in the real thing. On that note, I will say that I've nearly walked into the wall before (on the old system), and missed walking into the screen by a matter of about 6 inches.

      With respect to your other comment, the part about interoperability (The goggles would also have the benefit of being runnable on relatively standand class hardware), sometimes you want and need specialized solutions to do great things. Just because you or I cannot hope to afford such a system doesn't invalidate the system.

    3. Re:This looks really good, but also such a waste by eikonoklastes · · Score: 1

      There is nothing this room can do that a decent set of VR goggles can achieve.
      Except create a display with high resolution.

      I mean, this thing has to produce a spherical projection for every single point in the viewers space, its got to be crunching far too much data.
      Data crunching is realivly easy. The real bottleneck comes when you need to dispaly all the points.

      I personally don't see the benefits of this virtual magic carpet ride for the outlay required.
      Me either, and I'm working with (only) a 4-sided VR cave at my uni.

    4. Re:This looks really good, but also such a waste by foxcorner · · Score: 4, Informative

      There are no head-mounted displays that will deliver anything like the pixel resolution of a system like this. You simply wouldn't get the detail. And, the data infrastructure for this kind of project (where the aim is to visualize complex data) is not possible on "relatively standard class hardware". Another thing: In a cave environment like this, if you turn your head, the graphics view is updated only slightly or not at all. With a head-mount display, the whole scene has to swing round when you turn your head. If there's any latency in head-tracking (likely) or graphics rendering (possible), then the cave is much less unsettling per head-turn than is the head-mounted display. Less nausea. And another thing: you get a much larger peripheral view in a cave, leading to better understanding of context. Undisclaimer: I work for HP. :-)

    5. Re:This looks really good, but also such a waste by aliens · · Score: 2, Interesting

      Another post mentions tracking movement as a good reason for it you can't really use googles for, but I'll go one better.

      How about it's great for having more than one person in there and you can point at a spot and keep talking. With googles you'd both have to be wearing them and you'd have to describe to the other person the point you are looking at.

      At least that's what I thought of.

      --
      -- taking over the world, we are.
    6. Re:This looks really good, but also such a waste by ID10T5 · · Score: 1
      From the second image in TFA, you can clearly see the student is wearing some sort of optical device. These are most definitely not your standard "VR goggles".

      About 8 or 9 years ago, I had an opportunity to spend some late-night time in the original "cave" (predecessor to the C4 and C6). The optical device that was used at the time employed computer-controlled polarizing lenses, along with sensors to determine the location and orientation (i.e. where the user was looking). The flight simulator application I was using back then provided an extremely "real" environment, even compared to the recent consumer-level VR technology that is available. I was definitely not prepared for the realism, and within a few minutes was feeling some motion sickness and experiencing vertigo.

      I can only expect that with technological advances (computing, graphical display, enhancements to the optical headwear, etc.) over the past 8 or 9 years that the technology used in the C6 far surpasses anything available in "a decent set of VR goggles".

    7. Re:This looks really good, but also such a waste by foxcorner · · Score: 1

      The trouble is that this kind of environment doesn't usually work for more than one person. Reason #1: The projections are calculated for the location of the head-tracked user's eyes. With the stereo goggles on, everything makes sense... for him or her only. Reason #2: A six-sided cave usually has back-projection on all surfaces, including the floor. A perspex floor supported only at the very edges is unlikely to take more than one or two person's weight.

    8. Re:This looks really good, but also such a waste by reed · · Score: 1

      There is nothing this room can do that a decent set of VR goggles can achieve.

      More than one person can be in it?

      Besides have you ever actually used VR goggles? For any length of time?

    9. Re:This looks really good, but also such a waste by Jeff+DeMaagd · · Score: 1

      If you know of a set of good color goggles that exceed VGA resolution, please submit them.

    10. Re:This looks really good, but also such a waste by TJWitz · · Score: 2, Insightful

      #1 -
      Yes, though head-tracking is typically only done for 1 user, there are ways to set it up with multiple head-tracks and render/shutter multiple times per application-frame. Further, the difference between tracked/non-tracked users is really only an issue for objects that are near the 'screen' or would be 'inside' the walls. Large-scale or large-distance viewing is not affected since the binocular disparity is so small.

      #2 -

      The floor of the old C6 could handle 7-8 people safely, which is about as many as you can pack into a 10'x room anyways.

      At least while they're alive and/or comfortable.

    11. Re:This looks really good, but also such a waste by jjeffers · · Score: 1

      One of the things you can do with the C6 is actually put objects in the room. The floor of the C6 is made from a very thick plexiglass and can support well over 1,000 pounds. This allows you to wheel things like combine cabs into the room for doing VR simulations.

      I worked for Iowa State and the Virtual Reality Application center until recently, so I know what I'm talking about.

    12. Re:This looks really good, but also such a waste by MourningBlade · · Score: 1

      Neat! Someone who's been there. What sort of stuff was running on the display? What was the purpose? Anything you can tell us would be good - the article was a puff piece with a pretty picture.

    13. Re:This looks really good, but also such a waste by LookoutforChris · · Score: 1

      VR goggle that have a resolution of 100M pixels?!? Hell I'd be excited about goggle that had a resolution of 9M pixels! Whose your supplier? Of course you'd still need to setup a body tracking system, I guess you could get by with a 3D mouse, but probably no gloves or wand.

    14. Re:This looks really good, but also such a waste by Surt · · Score: 3, Interesting

      A head mounted display doesn't have to have that kind of pixel resolution. The input resolution to your brain is only about ~10 million elements in the eye, so with an up close goggle you can get away with something like 2-3 million pixels with no loss of detail. The head tracking issue is more relevant, though presumably you can again do better with a HUD because you can do fast inertial measurement at the head rather than having to use smart cameras to track. Then assuming you have an equal amount of processing power available to create the scene, the hardware required to render it to goggles will be much cheaper and more conventional.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    15. Re:This looks really good, but also such a waste by Anonymous Coward · · Score: 0

      "Data crunching is realivly easy. The real bottleneck comes when you need to dispaly all the points."
      The kind of data this thing will be visualising is not easy to crunch. We're talking about volumes that will barely fit onto hard disk, let alone memory. Splitting data into chunks (for multi-processing) so that data redundancy does not occur is one of the precises of Computational Mathematics. The bottleneck of displaying pixels is probably the easy job given that the data has already been split for processing. Multiple graphic pipelines will handle this.

    16. Re:This looks really good, but also such a waste by erko · · Score: 1

      #1 - Yes, though head-tracking is typically only done for 1 user, there are ways to set it up with multiple head-tracks and render/shutter multiple times per application-frame. Further, the difference between tracked/non-tracked users is really only an issue for objects that are near the 'screen' or would be 'inside' the walls. Large-scale or large-distance viewing is not affected since the binocular disparity is so small.

      I agree, although when giving a demo in the C6 (with a single tracked head), you have to warn the occasional person who starts to look around behind you, since they'll get reversed stereo. I wonder how many people can be multi-tracked these days. If I remember right, the glasses' shutter speed and projector brightness were the main problems a few years ago when Kris had two views working.

    17. Re:This looks really good, but also such a waste by TJWitz · · Score: 1

      True, there is that trick with the back wall.
      The brightness with the new projectors is a pretty night-and-day difference. The glasses we have for active stereo are still the same though, so that limitation is the same. I personally haven't looked into what (if any) new shutter technology is either out there these days. You should come back and check it out once it's completed later this year.

    18. Re:This looks really good, but also such a waste by Skreems · · Score: 1

      They don't track body position in the C6. They use the C4 for that, and that part of the setup is pretty buggy anyways. This page has a decent runthrough of the projects they do http://www.vrac.iastate.edu/research/index.php. Mostly it's industrial simulations for John Deere, P&G, etc. I worked on one art project there that was kind of neat, but it really suffered from the technology. Hopefully having some better hardware will let them do some more visually engaging stuff, although I sort of doubt it.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    19. Re:This looks really good, but also such a waste by zytheran · · Score: 1

      If you need a group of people in a shared experience in a 3D VR room and you want them to communicate like normal humans, looking at each other as they speak, using body language cues etc. then goggles don't work.
      Of course if your a nerd playing Doom5 then social interaction isn't really important and goggles are fine.

    20. Re:This looks really good, but also such a waste by Niet3sche · · Score: 1
      They don't track body position in the C6. They use the C4 for that, and that part of the setup is pretty buggy anyways. This page has a decent runthrough of the projects they do http://www.vrac.iastate.edu/research/index.php. Mostly it's industrial simulations for John Deere, P&G, etc. I worked on one art project there that was kind of neat, but it really suffered from the technology. Hopefully having some better hardware will let them do some more visually engaging stuff, although I sort of doubt it.
      What you've seen via the C4 is a bunch of "bucks" (e.g. platforms on which tractor, helicopter, and other bodies sit on). Now, the tracking of body posture in the C6 is a new thing that is being examined - I have heard talk of a 2-camera system that is planned for this. As for tracking position, I believe that you are refering to the IR system that is used in the C4 (and C6) that sits in glasses or a "satchel", respectively. So - yes, they do currently track one body position in the C6 via the "satchel" approach, but there is a new system that is under investigation (camera(s)) that would be able to examine posture as well. Indeed, such a system (Icarus) has already been done in the C4 for flying around via flapping your arms and such. Remember, what I'm talking about here is visual- or camera- based inspection that is able to determine posture as opposed to the (rather) buggy infra-red (IR) system that is in place now. Hopefully this makes the post a bit more clear.
    21. Re:This looks really good, but also such a waste by Skreems · · Score: 1

      I know we looked at doing something similar from a company in CA for the art project I mentioned, but the "posture" thing is news to me. When did they start looking at that? The C4 was pretty non-functional when I left.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    22. Re:This looks really good, but also such a waste by Anonymous Coward · · Score: 0

      My eyes!! The goggles, they do nothing!!

    23. Re:This looks really good, but also such a waste by Niet3sche · · Score: 1
      I know we looked at doing something similar from a company in CA for the art project I mentioned, but the "posture" thing is news to me. When did they start looking at that? The C4 was pretty non-functional when I left.

      Well, the project (Icarus) that I mentioned was completed this semester in HCI 575x (Computer Perception). Throughout the semester I have been hearing that we'd like to include a couple of cameras in the C6 for body posture/pose/position tracking. While I can speculate that this has something to do with Alex Stoychev showing up (the instructor for 575x), this is only speculation and I'm unsure of just when/how the decision was made, nor how far down the road we are. However, to go back to what does work, the Icarus team (no, I'm not part of it) gave a demo in the C4, so I think that's functional now.

    24. Re:This looks really good, but also such a waste by Skreems · · Score: 1

      I'd be interested to know how they filter out background images... if the C4 setup relies on the fact that the top and back views are dark and basically unchanging, I'd guess they would have a hard time adapting it to a fully immersive environment. If they've found a way to compensate for that, though, then that's really impressive.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    25. Re:This looks really good, but also such a waste by Anonymous Coward · · Score: 0

      Having worked previously on VR rooms (circa 2000, as TFA says, powered by the same sort of SGI machines) for air traffic control training systems, I can offer an opinion as to why the VR from that room absolutely blows away any goggle-based VR.

      Quite simply, it allows your eyes to work naturally. Your peripheral vision works (I haven't seen goggles yet that have enough of a field of vision). When your eyeball twitches, the picture is already there (this somewhat relates to resolution).

      When you turn your head, your eyes don't sweep evenly over the panorama, they move in fits and starts. Goggles don't do that well at all.

      Where I used to work, they had only 10 projectors (ATC towers didn't need to simulate the floor or roof), but 360 other than that, on 10' high screens. We also had some theater seating in there (the room was about 20' across) so that guests could see the stuff in action.

      One mode we had was a pilot view. Because the systems was for ATC, not flight sim, we didn't have any cockpit -- it was like floating in the air.

      One time we were showing this off to a bunch of execs, and the plane that the pilot view was on turned on final approach. I kid you not, half the execs fell out of their chairs because of the swerving (looked like the TOS Enterprise bridge shake stuff).

      Goggles can't do that.

    26. Re:This looks really good, but also such a waste by kratt · · Score: 1

      Image fidelity is a must, don't get me wrong, but its the tracking that needs the most improvement in the C6. I'm very interested to see what VRAC is going to settle on. IMO its worth spending another $4 million for top-of-the-line tracking and UI hardware. Pretty pictures are great for investor demos, but with poor interaction they can only go so far.

  12. Here it comes by Wolface · · Score: 1

    Let the porn jokes cue in...

    1. Re:Here it comes by caveymon · · Score: 1

      you cum too late ;)

  13. Atanasoff-Berry Computer by Anonymous Coward · · Score: 2, Informative

    ISU is home to the Atanasoff-Berry Computer, the first electronic digital computer.

    1. Re:Atanasoff-Berry Computer by Chowderbags · · Score: 1

      Technicly, it's home to a replica. The real one was dismantled long ago.

    2. Re:Atanasoff-Berry Computer by corngrower · · Score: 1

      And you're now reading a post by someone who actually has seen the original ABC, not the reconstruction they've now got in the Com Sci. building. It was on display in the ISU Physics building until about 1976. It disappeared after that.

    3. Re:Atanasoff-Berry Computer by 3waygeek · · Score: 1

      Most of it disappeared. One part survived -- a capacitor memory drum. Back in the 80s, when I was an undergrad in physics & computer engineering, it resided in the office of Clair Maple, then director of ISU's Computation Center.

  14. One last lame post by fm6 · · Score: 3, Insightful

    All the previous posts are lame as hell. I shouldn't add another one, but I have to point out the misuse of the word "ironic". Somebody seems to think that "ironic" means "sad coincidence". No, it means "incongruous circumstances". (There's actually several meanings of "ironic", but this is the one that comes closest to applying.) There's nothing incongruous about this. SGI went bankrupt because their specialized hardware got replaced by commodity hardware. The new VR room uses commodity hardware. No irony here, move along.

    1. Re:One last lame post by Joosy · · Score: 4, Interesting
      According to Merriam-Webster's ...
      3 a (1) : incongruity between the actual result of a sequence of events and the normal or expected result (2) : an event or result marked by such incongruity
      Given that SGI powered the first version of C6, and that C6 is receiving a massive upgrade, it would be an "expected result" that SGI would benefit. However, the "actual result" is that they declared bankruptcy on the same day. It could be said that this is an "incongruity." So it is not unreasonable to say that this is indeed ironic.
      --
      I'm sick and tired of these hip, "ironic" sigs. This is an actual, honest-to-goodness no-nonsense sig!
    2. Re:One last lame post by 50m31sl4sh. · · Score: 0

      Isn't it ironic to have an "non-ironic" sig while posting about whether the situation is ironic?

      (Sorry for tautology)

      --
      Rediculous is ridiculous!
    3. Re:One last lame post by MyNymWasTaken · · Score: 1

      That still isn't irony. At best, it's syncronicity.

      SGI stopped being a market power and is collapsing. The C6 needed to be upgraded. Rather than go with a flailing has-been, a different provider was selected.

      It is a coincidence that on the same day that they filed bankruptcy, the upgrade was announced - hence syncronicity, not irony.

    4. Re:One last lame post by Roxton · · Score: 1

      But there's a tragic humor there that "coincidence" and "synchronicity" fail to connote. You can't really hate on people for expanding the English language to accommodate such a simple and common mental concept.

    5. Re:One last lame post by ari_j · · Score: 1

      You can't really hate on people for expanding the English language to accommodate such a simple and common mental concept.

      This is not an expansion of the language - it's a misuse of a word within the language. Furthermore, you can always dislike people who throw around random prepositions where they do not belong.

    6. Re:One last lame post by Anonymous Coward · · Score: 0

      Language is defined by usage, not dictionaries. Dictionaries document language, necessarily lagging behind real usage to some degree. There is no difference between "an ubiquitously misused word" and "an expansion of the language". Is this really such a hard concept to grasp?

    7. Re:One last lame post by gkhan1 · · Score: 1
      But there's a tragic humor there that "coincidence" and "synchronicity" fail to connote. You can't really hate on people for expanding the English language to accommodate such a simple and common mental concept.

      I agree with this 100%. First of all, languages grow, and words change meaning. One of the best examples is "literally", which means, literally, "by the letter". The word has come to mean something like "this actually happened", but in modern times is mostly used in direct opposition to that definition. "She's literally glowing with pride!" This is completly correct usage in modern english, even though many people wont accept it (there is a great article on slate on this very word, written by an editor of the OED, which should be pretty authoratative).

      Same thing with irony. As you said, there is a mental concept very closely tied to situations like these, and there is no other word that even comes close to describing it other than "irony". So why not use the word in that way? If you're answer is "because it is just plain wrong", than you don't understand much about how language develops.

      Be descriptive, not prescriptive!

    8. Re:One last lame post by gkhan1 · · Score: 1
      Ok, now I feel really stupid, I know the difference between "you're" and "your", I apologise. I'm not a native speaker and it is 2:14 AM here. I think that is a sufficient excuse for any language imperfections........ The link to the slate article is http://www.slate.com/id/2129105/ btw.

      (and no, I have no idea how authorotative is spelled)

    9. Re:One last lame post by ari_j · · Score: 1

      I think you're the first person in this thread to say "ubiquitously misused." Language does indeed evolve, but there is a difference between an expansion of the language and a common misuse. Furthermore, irony is more than a word. It's a concept. Claiming that something is ironic merely because it is coincidental is not a sign of linguistic evolution, but rather of an educational shortcoming. That you not only don't get it but post your ignorance anonymously shows that you are part of the problem.

    10. Re:One last lame post by welcher · · Score: 1

      The use of irony here is figurative, as defined in the Oxford english dictionary:

      fig. A condition of affairs or events of a character opposite to what was, or might naturally be, expected; a contradictory outcome of events as if in mockery of the promise and fitness of things.

      SGI might well have believe that they were the natural commision for this sort of work. Events (as you describe them) haven't turned out like that and it all comes together on one day. The cruel irony of it all.

    11. Re:One last lame post by bsletten · · Score: 1

      Languages do evolve, but it also isn't simply a free-for-all. If we allow misuse to desiccate words of meaning, we lose the precision they once connoted. Irony as a literary device is sublime. Irony as a synonym of 'coincidence' is banal.

      I'm not promoting effete pedantry, I just appreciate a good nuance now and then.

    12. Re:One last lame post by gkhan1 · · Score: 1

      I agree that the literary concept of Dramatic Irony is really quite fascinating, but it is also very far from how we use the word in speech and text every day. While I agree that certain things are simply Wrong (to say "we have a very unique oppertunity" is moronic, and the plural of virus is not virii!!!) and should be corrected, organic evolution of language concepts are thing we just have to accept. Any decent linguist will agree with this.

    13. Re:One last lame post by tpoo22 · · Score: 1

      Blackadder: Baldrick, have you no idea what irony is? Baldrick: Yes, it's like goldy and bronzy only it's made out of iron.

    14. Re:One last lame post by fm6 · · Score: 1

      The sound of hoof beats 'cross the glade
      Good folk, lock up your son and daughter
      Beware the deadly flashing blade
      Unless you want to end up shorter
      Black Adder, Black Adder, he rides a pitch black steed
      Black Adder, Black Adder, he's very bad indeed
      Black: his gloves of finest mole
      Black: his codpiece made of metal
      His horse is blacker than a hole
      His pot is blacker than his kettle
      Black Adder, Black Adder, with many an cunning plan
      Black Adder, Black Adder, you horrid little man.

    15. Re:One last lame post by Roxton · · Score: 1

      Yeah, but what's the substitute for conveying that concept?

      If I were to refer to such a statement as a case of tragic, humorous synchronicity, I'm sure someone would jam a steel spork up my ass. "Irony" will do.

  15. Cost? by Anonymous Coward · · Score: 0

    Does it really cost that much with todays processing power?

  16. HP GPUs? by ragnarok · · Score: 2, Insightful

    Does Hewlett-Packard actually make GPUs? I would think they would go with some off the shelf chips from Nvidia or ATI, surely those can push more pixels than anything else and they would have the advantage of a relatively standard API (opengl for example).

    Is there some very specialised requirement I'm not seeing here?

    --
    Search first, ask questions later.
    1. Re:HP GPUs? by Niet3sche · · Score: 3, Informative
      Does Hewlett-Packard actually make GPUs? I would think they would go with some off the shelf chips from Nvidia or ATI, surely those can push more pixels than anything else and they would have the advantage of a relatively standard API (opengl for example). Is there some very specialised requirement I'm not seeing here?

      I can only comment about the API - we're using something that is a standard (for us) and that fills in as nice middleware: VRJuggler. It sits atop (among other things) OpenGL.

    2. Re:HP GPUs? by SebNukem · · Score: 1

      They used to make GPUs (fx series, like fx5, fx10, fxe, etc.) for PA-RISC systems but not anymore. HP Workstations are nVidia and ATI powered now.

    3. Re:HP GPUs? by WCD_Thor · · Score: 1

      They can make the boards and use the Nvidia or ATI chips, just like BFG or other companies do.

  17. The (other) important question: by Guppy06 · · Score: 1

    Can it play Mario Clash?

  18. Irony by Anonymous Coward · · Score: 0

    It's like rain on your wedding day.

  19. RealityLens by Anonymous Coward · · Score: 1, Interesting

    Would be cool if they coupled this with some sort of video camera that has the capability to capture the images this room is capable of displaying like http://www.realitylens.net/.

  20. Poor quality by plumby · · Score: 5, Funny

    For 100 million pixels, the graphics of those planes look pretty crap.

    1. Re:Poor quality by icydog · · Score: 1

      That's because the image you see on TFA is 1/1300 of 100 million pixels. I bet that 1600x1200 high-res porn wouldn't look so great at 39x39 either.

      (I'm kidding. Well, mostly.)

    2. Re:Poor quality by momerath2003 · · Score: 3, Funny

      It's all about the gameplay.

      --
      I had but a simple dream, to destroy all humans.
    3. Re:Poor quality by metalcup · · Score: 1

      that could also be the old SGI's rendering their last images..maybe that's why they needed the upgrade!

      --
      "Laziness is an optimisation protocol"
    4. Re:Poor quality by TJWitz · · Score: 1

      The screenshots are from the old system, built circa 2000, which has about 1/16th the resolution.

    5. Re:Poor quality by Tet · · Score: 1
      For 100 million pixels, the graphics of those planes look pretty crap.

      Despite the impressive sounding headline figures, it's not actually that high resolution at all. 100 million pixels is approx 16.7 million per side of the cube. Now I have some 4.2 million pixels sitting in front of me as I type this. So it's only about 4 times the pixels of my current desktop, covering a 10'x10' wall, which I can assure you is much more than 4 times the display area that I have. In fact, the VR room is only around 33dpi, compared to over 100dpi on my desktop. It's still pretty impressive, of course, and remember that your head will typically be 5' away from the display in the VR room, so you don't need massively high resolutions to get a good visual effect.

      --
      "The invisible and the non-existent look very much alike." -- Delos B. McKown
    6. Re:Poor quality by slashdotnickname · · Score: 1

      For 100 million pixels, the graphics of those planes look pretty crap.

      For 500 sq ft area (600 with floor), they'd need at least 300 million pixels to look realistic.

    7. Re:Poor quality by tkarr · · Score: 1

      Also, the images were made to be recognized by military gurus from a very high distance above the field. They don't need to look realistic as long as they look similar to what they are used to, and they are recognized from a long distance away.

    8. Re:Poor quality by Skreems · · Score: 2, Funny

      In the C6, you can drag a web browser over the portion of the shared desktop that shows the various screens. The window shows only as an outline until you release the mouse. I once dropped the goatse image 6 feet tall across the front screen when demoing an app for some friends.

      I'm a bad, bad person :-( / >:-)

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    9. Re:Poor quality by Draconum · · Score: 1

      It's a tactical simulation, not an Xbox 360 game. But I don't disagree. Who needs to see paper airplanes in high-res?

      --
      "For everything, there's Rupees. For everything else... there's Master Sword."
    10. Re:Poor quality by kratt · · Score: 1

      Bad screenshot, that's an icon for a plane. They have models of actual planes in that app too, they look quite nice ;).

  21. about irony.. by Skadet · · Score: 1

    SGI went bankrupt...

    It's like the University could have gotten a free ride, but they already paid...

    1. Re:about irony.. by ID10T5 · · Score: 1
      ISU got quite a good free ride from SGI.

      Former SGI CEO Ed McCracken was a graduate of the ISU College of Engineering. In 1992 he donated $5 million worth of SGI equipment to the university. I'm not sure what (if any) of the original donation went to what became the VRAC, but the widespread use of SGI equipment in the ISU College of Engineering certainly contributed to the use of SGI hardware in the VRAC.

  22. They probably meant cluster of 96 workstations by Anonymous Coward · · Score: 0

    HP makes graphics workstations, and a lot of them are in clusters around the world.

    96 would be a pretty small one. Heck, with as vague as the statement is, that could be 48 dual CPU, or 24 dual dual-core CPUs.

    There's an SLI capable box that's been shown off for 32X FSAA in real time. 6 of them, linked with the Nvidia Genlock/Framelock cards, moving a rendering/raytracing of a car in real time, no jaggies. :-)

    First time I've ever seen a line around a tradebooth that wasn't handing out schwag.

  23. Yawn? by jeff_schiller · · Score: 1

    My computer screen has 1600x1200 pixels. 100 million pixels would be 52 of these screens. Let's say there are 4 walls - that's 8 screens per wall...big deal :P Let me get out my check book...

    1. Re:Yawn? by sinfree · · Score: 0

      Now try to imagine them making a camera that actually takes high-res shots at 100 million pixels. Nothing like seeing a 1280x1024 pixel image all blurry and blocky. I would personally rather see it on a 1280 x 1024 monitor for clarity sake.

    2. Re:Yawn? by Anonymous Coward · · Score: 0

      ( 4 * 8 ) != 52

    3. Re:Yawn? by Anonymous Coward · · Score: 0

      According to my calculations:
      8 times 4 happens to equal 32...

      Perhaps you're thinking 6 walls, with perhaps 9 screens per wall? okay, 54 screens, but closer than your calculations

  24. Link to article text here by Niet3sche · · Score: 2, Informative

    5-8-06

    Contacts:

    James Oliver, Virtual Reality Applications Center, (515) 294-2649

    Chiu-Shui Chan, Architecture, (515) 294-8326

    Eve Wurtele, Genetics, Development and Cell Biology, (515) 294-8989

    Mark Bryden, Mechanical Engineering, (515) 294-3891

    Mike Krapfl, News Service, (515) 294-4917

    /

    The most realistic virtual reality room in the world

    AMES, Iowa -- More than $4 million in equipment upgrades will shine 100 million pixels on Iowa State University's six-sided virtual reality room.

    (image)C6 battlespace

    (image caption)Jared Knutzon, an Iowa State University graduate student in human computer interaction, demonstrates how Iowa State's C6 virtual reality room can control the military's unmanned aerial vehicles.

    That's twice the number of pixels lighting up any virtual reality room in the world and 16 times the pixels now projected on Iowa State's C6, a 10-foot by 10-foot virtual reality room that surrounds users with computer-generated 3-D images. That means the C6 will produce virtual reality at the world's highest resolution.

    Iowa State's C6 opened in June 2000 as the country's first six-sided virtual reality room designed to immerse users in images and sound. The graphics and projection technology that made such immersion possible hasn't been updated since the C6 opened.

    The difference between the equipment currently in the C6 and the updated technology to be installed this summer, "is like putting on your glasses in the morning," said James Oliver, the director of Iowa State's Virtual Reality Applications Center and a professor of mechanical engineering.

    The new equipment -- a Hewlett-Packard computer featuring 96 graphics processing units, 24 Sony digital projectors, an eight-channel audio system and ultrasonic motion tracking technology -- will be installed by Fakespace Systems Inc. of Marshalltown. The project is supported by a U.S. Department of Defense appropriation through the Air Force Office of Scientific Research.

    The project began this spring with a prototype upgrade to one wall of the C6. The remainder of the work will continue throughout the summer. Oliver said the improved C6 will open in the fall. A grand opening celebration is being planned for the spring of 2007.

    A better C6 will be good news for the Iowa State researchers who study virtual reality.

    Chiu-Shui Chan, an Iowa State professor of architecture, has used the C6 to develop 3-D models of buildings, cities and workplaces. He's studying how virtual reality can be a tool to create a library of historical buildings, plan urban growth and test workplace efficiency.

    (image)virtual Beijing

    (image caption) A virtual model of the Xidan business district in Beijing can help city planners manage urban growth.

    Chan said the upgrade will improve the visual realism and interactive speed of his virtual reality applications. And that will enhance the sense of place in his applications and the effectiveness of his research.

    Chan said the C6's existing technology requires him to balance and sacrifice some of a project's size, speed, realism or human-computer interaction. "With the new system I won't have to worry about that," he said.

    Eve Wurtele, an Iowa State professor of genetics, development and cell biology, working with Julie Dickerson, an Iowa State associate professor of electrical and computer engineering, has used the C6 to develop new ways to visualize data from as many as 22,000 genes. She's also developing a virtual cell project that shows cells in 3-D action to help students learn about photosynthesis and other aspects of cell biology.

    Wurtele said the higher speeds and better pictures will be a boost for her research and teaching.

    "This upgrade is fantastic for us," she said. "It's essential for our research."

    Mark Bryden, an associate professor of mechanical engineering, has used virtual reality to develop engineering tools that he

  25. nevermind VR pr0n by blew_fantom · · Score: 1

    vr pr0n would probably be the first to capitalize and commercialize this technology. but i think it's the virtual sex industry that will totally redefine how this technology is used. we see it in cheezy 80's sci-fi movies (ok, cheezy sci-fi movies in general) all the time; virtual sex in a virtual world, with a virtual woman of your dreams. yikes...

    1. Re:nevermind VR pr0n by Draconum · · Score: 1

      Oh how I love thee, wall... It sounds cold, flat, and hard. I think we're going to have to wait on holographic projection and tangibility generation* before we worry about that...
      *I made this up, but it sounds like it should be a word.

      --
      "For everything, there's Rupees. For everything else... there's Master Sword."
  26. Based on open source VR by patrickh2 · · Score: 2, Informative

    The ISU press release does not mention it, but the new C6 will be driven by open source technologies such as VR Juggler, OpenSG, and of course, Linux.

  27. Coral Cache Here by Niet3sche · · Score: 1, Informative
  28. Good to see government money at work by Anonymous Coward · · Score: 0

    Does anybody really think the Gov'ment is using our money wisely? Do we really need to be spending millions to set up virtual reality?

    I mean, anyone experience a fantasy world on the cheap just by listening to Bush or the WH briefings...

    1. Re:Good to see government money at work by Loconut1389 · · Score: 1

      This is actually a lot of corporate money (SGI, and others) that was put in to visualize anything from chemical bonds to aerospace models and more. Sometimes seeing things big and in high def is a truly great way to study something and be able to see it inside and out. Imagine walking inside a CAD/CAM model of the space shuttle during a launch and finding out ahead of time about the foam problem. (just a wild and improbably forinstance, but the idea is the same). Granted there is -some- government money, but its not how youd imagine. Some comes out of students' pockets (I'd imagine very little), etc etc..

      -blt@iastate.edu

  29. Holodeck? by Anonymous Coward · · Score: 0

    does the term Holodeck ring a bell to anybody?

  30. I just dont get it by Tester · · Score: 4, Insightful

    I just dont get why multi-million dollar visualisation equipement create better research. And I've work in a HPC research center where we have a very nice 3D screen powered by a massive SGI.. And never saw it used to any significant research, sure its a nice toy and its a nice way to blow research dollars. But what a waste. And anyways, most of the time, most researchers where doing their visuation in their offices with their PCs and nvidia/ati cards and their consumer grade crts.. And I'm sure they could see plenty.

    1. Re:I just dont get it by Stalus · · Score: 1

      Men buy sport's cars, women inflate their boobs, and graphics researchers get bigger screens. Sure, there's been research that says tiny ass screens make people less productive, but I haven't seen anything that says that a huge ass VR wall will advance research in any way shape or form. It's one of the major short comings of graphics research.. sometimes we get so wrapped up in the wow-factor, that the user studies are never done to figure out if the images that are displayed are actually useful. Too many times, the user studies are whether or not X person preferred it, as opposed to X person was able to be more productive, discover more, etc. One of the first things you learn when working with scientists is that the visualizations that they prefer sometimes lead them to false conclusions.

      Side note though.. considering that your effective high resolution field of view is maybe three degrees, they'd be better off spending that money to do research to build an eye tracker connected to a very high resolution single projector, and just project a large, low resolution image for the rest of the wall.. two projectors, and the user wouldn't be the wiser.

    2. Re:I just dont get it by erko · · Score: 3, Insightful

      But with only one wall, you can't walk around and look at an object or visualization the way you would walk around a pillar. You can't lean over things and look at them from directly above or below. With a six-sided CAVE, you can. Being able to naturally move around 3D data has helped researchers discover new things in the same data they've looked at before with other methods.

      Also, although the article's picture shows three visible screens, when you're in the C6, you don't see them as separate screens. It's not as if a few extra "walls" were added, it's as if you are surrounded by your environment.

    3. Re:I just dont get it by winse · · Score: 1

      and besides, how else will we ever get the technology to "holodeck" status if we don't keep blowing research money these caves.

      On a serious note though, these types of rooms tend to be gee wiz dog and pony crap that is only useful for getting more research money to blow...which in itself makes it worthwhile to build them ;-)

      --
      this sig is deprecated
  31. Ames Sucks by Anonymous Coward · · Score: 0

    Ames, Iowa is the most boring, backward place in Iowa, which puts it pretty high in the running for worst place ever in the universe.

    That being said, I'm glad they have something to do besides light each other on fire during VEISHA.

    This VR room really is pointless, though, and should go somewhere much cooler, like up a bum's asshole.

    1. Re:Ames Sucks by corngrower · · Score: 2, Funny
      Ames, Iowa is the most boring, backward place in Iowa,

      You're obviously not very familiar with Iowa. There are plenty of other places that make ames look like NYC.

    2. Re:Ames Sucks by SanityInAnarchy · · Score: 1

      Jealous much?

      --
      Don't thank God, thank a doctor!
  32. A six sided room! by Anonymous Coward · · Score: 0

    What will they think of next?!

    1. Re:A six sided room! by MobileTatsu-NJG · · Score: 1

      "What will they think of next?!"

      Well, now that Star Trek is gone, the future looks gloomy.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  33. Cheap-Jethro VR. by Anonymous Coward · · Score: 0

    "There has got to be cheap way to do this at home. "

    Take one frosted fishbowl attached to a collar. Add projectors around perimeter. Throw in motion tracking body suit. Mix with lots of software. Serve a year later on slashdot.

  34. Not so cheap by MrTester · · Score: 3, Informative

    Your missing a piece of this though.

    Its in 3d.
    Doing 3d is no big deal for a small screen when the viewer is in a fixed perspective, but when you ware walking around the room the images have to change to keep the proper 3d perspective. Doing all of that for a 6 sided room in high deffinition and on-the-fly takes some serious horse power.

    (BTW, I was in it in 1999 when it was 4 sided (floor and 3 walls))

    1. Re:Not so cheap by kidgenius · · Score: 1
      It doesn't take "that" much hardware though.


      The toughest part is the software, which is usually very proprietary. I used to work in the planetarium field, and people like Evans and Sutherland were just rolling out massive, all-dome video systems. Usually these consisted of 4 projectors that would cover the dome in 3d. The computers that were running this stuff were pretty simple. One computer per projector, plus one computer that told the other computers what to draw. None of the computers were over 400Mhz. Granted, this was for regular video playback. To play a real-time 3d animation, that's where the hardware really had to be kicked up. I suspect that today's 3Ghz machines with the latest graphics cards could easily do what is needed. It won't be cheap, but it won't be super-expensive. Like I said, the hard part is having the software that corrects for the distortion of whatever surface you are projecting on so that it appears in true 3d.

    2. Re:Not so cheap by Anonymous Coward · · Score: 0

      "Doing 3d is no big deal for a small screen when the viewer is in a fixed perspective, but when you ware walking around the room the images have to change to keep the proper 3d perspective."

      Not really, because I'm fairly sure they don't try to do "proper" perspective correction beyond what a normal GL pipeline does. It works well enough unless you go really close to the walls and look at things in the corner of your eye. "standard" perspective correction is just a matter of a matrix to multiply your triangles to, which has been "for free" in consumer hardware back since nVidia nv10.

      I have some experience from an "much" older, but similar system (www.pdc.kth.se/projects/vr-cube).

      The difference between a system like this and a normal pc is:
      - 6 surfaces instead of one, meaning 6 pipelines (or multiple of 6 to parallelize pixel crunching)
      - more pixels
      - half the framerate you might expect (stereoscopic display)
      - you get motion sickness sooner than you would think when playing the quake 2 compiled for it.

    3. Re:Not so cheap by Anonymous Coward · · Score: 0

      I was in it when it had 6 walls :) My brother's friend who's an ME grad student showed it to us. I graduated ISU 5 months ago.

      Believe it or not, I was unimpressed with the resolution and framerate. I'm sure this upgrade will vastly improve that.

    4. Re:Not so cheap by MrTester · · Score: 1

      But again, in ISUs cave the 3d perspective changes on the fly depending on your position in the room.

      For a planitarium the 3d can be calculated once for a fixed perspective.

      The projected image has to change for a 3d image to work depending on whether you are in the North West Corner of the room standing on your toes or the South East corner of the room laying down.

      Yes, you could generate a nice 3d image from your home PC from a FIXED PERSPECTIVE.

    5. Re:Not so cheap by kidgenius · · Score: 1

      Ok...I see what you are saying, and I agree that the motion tracking and modification would up the ante quite a bit.

  35. Actually, that isn't true... by cr0sh · · Score: 1
    There is one thing a CAVE system can do that the vast majority of HMDs can't, which is to provide true immersion within the virtual environment. By "true immersion", I mean a field-of-view (FOV) and resolution of display that is beyond anything any current HMD can do. With the resolution of this system, I would dare say that for the resulting FOV the number of pixels per degree is probably pretty outstanding. Likely close to 20/20 visual acuity, something no HMD on the market can do.

    Certainly, there might be a few one-off HMD research models out there, using some exotic display technology (or just a ramped up form of current display tech) to achieve extremely high resolutions coupled with wide FOV angles, but I doubt it (if that kind of tech existed, we would see in projectors and TV's today, as that market is much larger and lucrative). Even if such HMDs did exist, they wouldn't be cheap. Some of the best HMDs out there, built by companies like Kaiser-ElectroOptics, sell for around $250,000 - and still don't approach the FOV and resolution levels of most CAVE systems. Certainly these HMDs are very nice, and have their own benefits (like not needing an entire HUGE room to setup and use them in), but for massively immersive virtual environments, where a full and realistic FOV is needed, with extreme resolution to bring visual acuity at or near 20/20, a CAVE cannot be beat.

    --
    Reason is the Path to God - Anon
  36. next best thing by Device666 · · Score: 2, Insightful

    Of course such a room is very interesting for information visualisation. I think the next best thing is to hardwire a computer to our brain so we don't need a room for so much resolution. And this also would benefit better use of augmented reality

    I went to ISAR in 2000, in those days even SGI's weren't getting close to get all the computing force AR typically needs. I wonder how AR is now developing. AR is maybe more interesting for interaction designers to make virtual interfaces for objects from the real world. I have experience many AR applications on ISAR and it gave me a deep impression which VR never has given me. People who find AR interesting (the next really big thing) should follow this link

    PS: if someone wants to prove me the VR experience of this thing I might say "hmm.. maybe that's an interesting offer"

    1. Re:next best thing by TJWitz · · Score: 1

      If you can make it to Ames, IA once it's completed...

    2. Re:next best thing by TJWitz · · Score: 1

      Also, to comment on the AR portion (my earlier post was cut short by a trip for groceries with the wife), one of the key elements in the UAV project mentioned in the article (though not specifically mentioned) is the notion of augmented virtuality. To render a virtual scene of what surrounds an unmanned vehicle based on our best knowledge of those surroundings (terrain, weather, etc..), and then augment this scene with the actual sensor information (video, radar, etc..) to fuse multiple information sources into a cohesive interface for a ground controller, that really comprises the best picture possible.

      Extending this to a squadron/flight of UAVs and researching input device combinations as well as interaction strategies is the meat of that research. Since we're researching future-state UAVs (i.e. doesn't exactly exist yet), spending $4 mill on bleeding edge, high-FOV displays makes a decent amount of sense - in 5-10 years the exponential progress will have increased where a $4m pricetag can get you, and brought down the price of the system that's going to be built soon.

      As an aside, I've always thought the idea of protyping AR interactions using VR would be a decently practical approach, albeit in somewhat lower-res than AR (or VR) will eventually achieve. And, like I said, if you can make it out to Ames at some point check us out.

  37. A 10 by 10 room?!? by Anonymous Coward · · Score: 0

    I search it for traps!

    I made my Search Roll. What do I find?!?

  38. VR Goggles! by Pi_0's+don't+shower · · Score: 1

    MY EYES! The goggles, they do nothing!

  39. Poor SGI by couch_warrior · · Score: 4, Insightful

    I used to teach system admin and hardware repair courses for the Origin2000 and Onyx2 at SGI, and when the class was in Mountain View one module was to visit the "Reality Wall". That screen had only 24 Megapixels projected onto a 120 degree wrap around screen, but even at that the flight simulator was so realistic that students would fall out of their chairs when the plane took a curve.
    Poor old SGI. They built amazingly excellent hardware, bleeding edge software, paid their workers well, treated employees like kings and customers like emporers, and donated heavily to the open source movement.
    So, of course they went bankrupt.
    Done in by the Microslop-ization of technology.
    We who were once the high preists of the cult of technology, wizards of electronic wonder, have become the janitors of the Microsoft plumbing, fit only to plunge out the cr@p that clogs the email pipes.
    By allowing slackers in our ranks to use shrink-wrap scumware to badly execute business functions cheaply, we have fallen from grace.

    --
    "Sic Semper Path of Least Resistance"
    1. Re:Poor SGI by sloth+jr · · Score: 1
      Poor old SGI. They built amazingly excellent hardware, bleeding edge software, paid their workers well, treated employees like kings and customers like emporers, and donated heavily to the open source movement.


      SGI did a lot of things like you mentioned well, but treating their customers well - was a mixed bag in my opinion. Support was top-notch, just at about NetApp levels.

      Let's talk about sales.

      SGI Salespeople seemed to be constructed primarily out of ex-Porn producers replete with coke spoons around their necks. You were SO LUCKY to be ALLOWED to even THINK about buying their incredible hardware! And yes yes, incredible hardware, but also wildly priced out-of-proportion: drives were ridiculously expensive, and excuse me? $5000 for a 100BaseT copper card in 1997 (this was for an Onyx)? NO WAY!

      All that might have been excused. And then came Farenheit, engineer exodus to nVidia, Jim whatever-the-hell-his-name-was Microsoft Lacky. All these participated in the final ass rape of SGI, but more than that was, as has been mentioned, the simple commoditization of hardware. Customer "wins" while they "lose".

      Despite it all, still worth lighting a candle for the splendor that was SGI....

      Sloth Jr
    2. Re:Poor SGI by dbullock · · Score: 1

      It wasn't Microsoft that killed SGI, it was Linux.

      --
      http://www.bullnet.com
    3. Re:Poor SGI by LookoutforChris · · Score: 1

      Actually it was nVidia and Intel (with some help from AMD). But dont' tell anyone.

    4. Re:Poor SGI by dbullock · · Score: 1

      Fair Enough :)

      --
      http://www.bullnet.com
    5. Re:Poor SGI by Skreems · · Score: 1

      I had to program on an Onyx4. I'll light that candle when they send me a check for all my wasted time trying to get fucking Mips to compile C++ standard compliant code.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    6. Re:Poor SGI by couch_warrior · · Score: 1

      I think what you observed was part of the death-spiral.

      A shrinking customer based caused SGI to "eat its own children" so to speak. They raised prices on parts and support to try to squeeze more revenue out of existing customers, which only caused them to have fewer existing customers.

      That was, as you have observed, mostly the fault of cocaine-snorting marketing types.

      After all, if you don't admit that negative things are happening, you can keep ignoring them until disaster strikes.

      --
      "Sic Semper Path of Least Resistance"
    7. Re:Poor SGI by couch_warrior · · Score: 1

      I beg to differ with your statement- "It wasn't Microsoft that killed SGI, it was Linux." SGI embraced Linux wholeheartedly. They created a new high-speed low-latency interconnect technology to enhance beowulf clusters. They developed improved fail-over clustering and SAN servers for Linux. SGI LOVED linux. And they tried very hard to sell into the Linux market. But in the 1999 timeframe, SGI temporarily teamed with the MicroBorg and got suckered in much the same way that Apple did. SGI had a bundle of scene-generating software that was heavily used in the movie industry. MS apparently influenced SGI to create an intel-based NT/2000 workstation that had high-end proprietary SGI graphics in it. Then MS got SGI to "share" the code for their graphics software with MS on the premise that MS would do the grunt work of porting the graphics code to the Windulls environment and the two companies would then jointly market it. In an AMAZING bout of naivete, SGI assumed that MS would only port the SGI graphics code to run on proprietary SGI graphics hardware. Imagine SGI's dismay when the code showed up running on generic NT boxes with Nvidia and ATI graphics cards. Now animation houses could render art work on $1000 PCs with the same software they used to use on $10,000 Octane workstations. It was a fiasco. SGI quickly dropped their intel workstation line, but it was too late. MS was able to market the code as a generic product. You would think that companies would learn that sharing anything proprietary with the erstwhile pirates from Redmond is tantamount to asking Jeffrey Dahmer to babysit for you.

      --
      "Sic Semper Path of Least Resistance"
  40. WTF? by DRAGONWEEZEL · · Score: 1

    Why does that allways happen w/ pugs?

    Every time!

    ON Rexxar, I don't have that problem due to my awesome guild Gothic-Justice!

    --
    How much is your data worth? Back it up now.
  41. Slashdot makes ISU (StrangeTalk) by Anonymous Coward · · Score: 0
  42. Deep Inside Jenna Jameson... by Anonymous Coward · · Score: 0

    That would be a whole new perspective...

  43. I prefer 200 Megapixels by azav · · Score: 1

    I'll take that bet and raise you 104,800,000 pixels.

    http://www.apple.com/science/profiles/hiperwall/

    204,800,000 pixels - sans any dead ones.

    Cheers,

    --
    - Zav - Imagine a Beowulf cluster of insensitive clods...
    1. Re:I prefer 200 Megapixels by TJWitz · · Score: 1

      I'd be much more of a fan of the hiperwall if they could get rid of the seams, though the increase in resolution is nice. What are the dimensions on the wall?

    2. Re:I prefer 200 Megapixels by azav · · Score: 1

      I would expect 10 * 27.2 inches by 5 * 21.3 inches + a small amount of extra space between the monitors.

      http://www.apple.com/displays/specs.html

      --
      - Zav - Imagine a Beowulf cluster of insensitive clods...
  44. Not really by Anonymous Coward · · Score: 0

    As a Junior at Iowa State in the Mechanical Engineering program (which funds a big chunk of C6 acticities) I wish the C6 program would die already. The ME department has been sucking money out of resources the bulk of the students here use, in order to pay for a toy only a few people at the university will ever use.

    I've been inside the thing before on a tour, and yes, it's pretty cool inside when they run the 3D flyover demo, but nobody there could explain what is being done in the 3D cave that can't be done with a set of VR goggles or a regular computer screen. As a student, it boils my blood that the department does away with useful tools for students like liceneses for CAD software because of "the budget crunch," but it can still afford to piss away millions on TOY for a few professors and their grad student slaves.

  45. Research... my ass... by Anonymous Coward · · Score: 1, Insightful

    ...toy, plain and simple.

    1. Re:Research... my ass... by CurMo · · Score: 2, Informative

      Not a toy at all. As a CS ISU grad, and a friend of a researcher in the C6, I can attest that this has more uses than a toy. For instance, John Deere has used this to model new virtual cockpits for upcoming tractors. They can see if all controls are within reach and in reasonably intuitive places. If they aren't, they can change their positioning using a wand to grab them and move them. It has (or plans to) also been used with other caves to collaboratively develop models and see them work, such as a model of an engine.

      It is quite an impressive feat. You can pick, grab, and move things around just like they are right in front of you. It is more than just 6 flat panels. You also wear lcd shutter glasses and make those 6 panels turn 3D. So when reaching out to grab things they are exactly where you would expect them to be.

      However, it CAN be used as a toy even though that isn't it's primary purpose... I have also seen Quake played in the C4 (precursor to C6). Pretty cool to say the least.

    2. Re:Research... my ass... by talenos · · Score: 1

      As another VRAC employee I have to say that yeah, for most things it's going to be overkill, but immersive environments are better for certain tasks. You probably don't want to build a C6 web browser but it's something that does have a use.

  46. WeAzElMaN != Slashdot. by Anonymous Coward · · Score: 0

    Unless there is something seriously seriously wrong with the universe.

  47. 4 million by web_boyo_in_sac · · Score: 1

    and the best looking fighters they can show look like theyr came straight out of Tron?

    1. Re:4 million by Anonymous Coward · · Score: 0

      Any comments about the quality of the jet graphics should be directed to the creator of the program not the C6 capabilities.

  48. Price in 15 years ? by alexandrecc · · Score: 1
    If it costs about 200 000$ in 15 years, I'll get one for my basement. It should insert between the bowling alley and the inside pool. That way I am sure my future kids have lot of friends ...

    Am I materialist ?

    --
    For(k;;)(Fork();)
    1. Re:Price in 15 years ? by corngrower · · Score: 1

      Skip the bowling alley and the swimming pool.g Get the VR setup first and create a virtual bowling alley and swimming pool.

  49. Yea for Linux and free software. by Anonymous Coward · · Score: 0

    For the price that some people spend on gaming PCs nowadays I'd bet it would be possible to build a miniture version of one of these CAVES for relatively inexpensive price.

    4 or 5 LCD projectors with 3 or so Linux PCs with decent proccessors and dual headed video cards running Debian or whatever would do the trick.

    So about 800 dollars for the PCs and 900-1000 for the projectors as well as furnishing the room and whatnot would come out for less then ten grand. If your wealthy, or at least have good credit you could probably build a high resolution one for 20-30 grand.

    Imagine the possibilities for promotional stuff. Put it all in a trailer or whatnot. Setup some simple games. Or if your a architect you could make life-size mock-ups of your designs and let your customers navigate around in their virtual house.

    I would be great stuff.

    Now if I was smart I'd look into starting a company doing this stuff...

    1. Re:Yea for Linux and free software. by Skreems · · Score: 1

      Projectors that can support this kind of system in active vr cost a LOT more than you think. (active is lcd shutter glasses, rather than passive which is polarized lenses) The projectors in the C6 at present cost something like $50,000 each, and the mirrors to set up the space were even more than that. The projectors have to not only support 2x the visible framerate, but they have to support really tight constraints on display synchronization.

      --
      Slashdot needs a "-1, Wrong" moderation option.
      The Urban Hippie
    2. Re:Yea for Linux and free software. by Anonymous Coward · · Score: 0

      I wouldn't go with full VR with goggles and all that. Just need something to project the image on the walls.

  50. And it's VERY ironic by ak-74 · · Score: 1

    that they anounce it on the opening day of E3, especially as the game the guy is playing in TFA looks totally crap for 100 million pixels. 1 word for that idiot: Metal Gear Solid 4.

  51. Seven of nine and her astrometrics lab... by xquark · · Score: 1

    that is all i can say.

    --
    Arash Partow's Philosophy: Be a person who knows what they don't know, and not a person who doesn't know.
  52. 100,000,000 pixels... by nick_davison · · Score: 1

    ...and flat shaded, ~20 poly-count blue planes.

    Iowa state proudly boasts that they can render over ten million exactly the same color blue pixels at a time - a world record for any single polygon*.

    *When asked if the reason for this record was because no one else cares about wasting so many pixels to display exactly the same piece of information on a single circa 1990 polygon, the program director got so upset he completely refused to show journalists the advanced terapixel-pong project in the next room.

  53. PiVoxEls by Doc+Ruby · · Score: 1

    100M pixels on a 10' cube means 100000000 / (120 * 120 * 6) = 1157 pixels:inch^2, or 34dpi. Typical screen resolution is 72dpi, so this "VR" is less than 1/4 the resolution we're used to. Though viewing from approximately 5' distance in the room, rather than 2' on a PC, compensates quite a lot. OTOH, at least half those pixels aren't seen by a single viewer (behind them), and most of the rest are seen only outside the hi-rez foveas in the middle of their eyes' view field.

    I'd be more impressed with a 10' cube paneled with UXGA LCDs, with about 130dpi, with logic that doesn't bother rendering the unseen panels. Quadruple the resolution, but at most double the displayed pixels - maybe only 100M or less. The problems registering the panels seem easier than registering the projections along 488 edges, too.

    --

    --
    make install -not war

  54. Dead pixels by Mikya · · Score: 1

    So what's the warrenty on dead pixels?

  55. Re:This looks really good! by Airdish · · Score: 1

    As part of my dissertation work involves using such a room (we use a Fakespace CAVE with three walls, cluster of 3 Windows PC's for rendering), I have to put my two cents in. The CAVE allows for better spatial perception than any other VR tool i've used so far. When you're in it, a sense of immersion occurs, to the point where people are ducking to avoid obstacles (I give demos on a regular basis) and get queasy if you screw with the orientation. Below are some references for work done in such an environment. It's pretty nifty, but I think the possible uses for these things have not been exhausted, especially as a scientific tool. Although, admittedly. this system is more expensive and space-consuming than goggles. A little less clumsy, though, and you can collaborate with others inside of it. Fernando, T., Marcelino, L., (2000). Interactive Assembly Modeling within a CAVE Environment. 16-18th Feb. 2000. Portuguese Chapter of EuropGraphics. pp43-49 Snap2Diverse: Coordinating Information Visualizations and Virtual Environments Nicholas F. Polys, Chris North, Doug A. Bowman, Andrew Ray, Maxim Moldenhauer, Chetan Dandekar

  56. Virtual reality and research bang for buck. by Anonymous Coward · · Score: 0

    I'm somewhat wary of VR systems in universities.

    As far as I can see, VR is good for a few things:

    1. Simulating things that would otherwise be extremely difficult, or expensive to achieve in reality. An example is battle training pilots for the latest 300 million dollar Sitting Bull (or some such Indian name) Helli-go-wobble with search and destroy missiles, go-faster stripes, and big bore smoke stacks. If you make the simulation good enough, you can let them make mistakes that would kill our guys, and cost millions. This is good, as you'll get much better pilots, and you'll save your pilot's lives, equipment, and money in wartime.

    2. Creating interactive mock-ups of future products. You can watch the machine that you're designing working before you've built one. This could be valuable in some circumstances, especially if building a prototype will cost a million dollars. This process can avoid real problems, as people often can't envision spatial problems with prototypes until they've seen them function.

    3. Playing around and having fun.

    As far as I can see, universities don't do the first one (except perhaps ADFA/West Point/Sandhurst/RMC). They sometimes do the second one when partnering with industry. They often do the third one. My take on this is that if the university in Idaho does the second one, then it's justified. It doesn't even need to be efficient - I don't look for efficiency in US government spending, considering the huge amounts of money that the US government wastes. The money is going to an American company, so you can think of it as wealth redistribution if you want.

    I do believe that there is a big place in universities for high performance computing. Many theories require HPC for early validation. However, that doesn't mean that the researcher needs to be able to see a VR simulation of the Pi-Muoun splitting into a potato and an egg.

  57. you have a valid point by bobamu · · Score: 1

    but compare playing a typical 3d game at the same resolution on a 14" monitor and then play it on a 21" or larger.

    Despite the extra blockyness doesn't it feel like a better experience?

    This is just taking that up a few levels.

    I wonder if making a seamless round cave is the next level in this kind of visualisation/interaction system.

    1. Re:you have a valid point by Doc+Ruby · · Score: 1

      I prefer the bigger monitor at same resolution only to view it from further away.

      A spherical enclosure would at least justify the projectors, offering big computation saviings by actually projecting onto the display surface rather than computing the projection.

      --

      --
      make install -not war

  58. Will the C6 dominate the Virtual Boy? by Draconum · · Score: 1

    Virtual Boy!!!11!!1 Whether or not the ISU C6 will be able to topple the Virtual Boy as the top gateway into the 3D world is still yet to be seen. Where's the side-by-side comparison tests? I imagine that the possibility of emulating the Virtual Boy will, while being illegal under most circumstances, improve the sales of the C6 drastically, since owners of the C6 will be killing two birds with one stone. Look at what console emulation has done for the PSP scene...

    --
    "For everything, there's Rupees. For everything else... there's Master Sword."
  59. Specifications by foxcorner · · Score: 1

    The ISU cluster consists of 48 HP workstations, model xw9300. Each has two AMD Opteron processors, and two nVIDIA Quadro FX 4500 GPUs (not configured in SLI mode). There's a bunch of nVIDIA G-sync connectivity to lock the video frames and buffer swaps. The workstations are running Linux. Undisclaimer: I work for HP. :-)

  60. What they're good for by SeanAhern · · Score: 1

    I work as the head of visualization at an HPC center, and I have to say that you are right in many cases. However, there are plenty of times when such a facility, or a Powerwall, is warranted. Let me try to outline some of the use cases:

    1. Public relations, presentation. These facilities are used all the time to present scientific results to program managers, collaborators, funding agencies, and the like. Don't underestimate the power of these types of presentations. Though it's not "real science," they can often convince people with the purse strings of the important/quality of the "real science."

    2. Collaboration. Displaying and discussing scientific results while crowded around someone's laptop sucks. Even a 30" Apple display can only accomodate so many people. These large facilities allow for entire working groups to discuss results and calculations. That's fairly valuable for scientific collaboration.

    3. High-resolution data. There are some simulation domains that have such high spatial resolution that you simply can't see a single time step in full detail without a large display. Imagine a hydrodynamics instability problem calculated on a 2k^3 grid. Your monitor can't display that. Or a molecular dynamics calculation with a billion atoms. Map/GIS data also fits into this category easily.

    4. Data aggregation. Even for low-resolution data, it can be useful to lay out multiple timesteps on one display to see them all at once. Or if you have a simulation with a large numbers of degrees of freedom, you might want to see, say, 20 of those variables at once. You can't do that on an office display. You need a high-resolution display to do that data aggregation and correlation.

    Those are some of the basic use cases that I've seen in my work. I hope this discussion is useful.