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EyeSore: Real-Time 3D Projection Using Second Life
qDot Bunnyhug
Robot Breaker
Join date: 19 Jul 2005
Posts: 63
09-05-2005 00:05
Instead of "going outside" and "enjoying fresh air" and "time with friends" and all that crap on this 3 day weekend, I spent it playing Second Life in 3d. Like, real 3D. Or at least, as real as you can get with 2 projectors, 2 nice systems, polarized lenses, and a virtual world. :)

I hooked up two machines running two different SL accounts to our polarized projection system at the lab, and it worked great! I've written up a full explanation of the project on my website (grammar checking will happen tomorrow, to sleepy to do english/theory checks tonight, so it's essentially a brain dump), as well as putting it in notecard/animation form in-world.

The lab is at Deneb(232, 187)

http://www.nonpolynomial.com/content/2005/09/eyesore_real_ti.php

secondlife://deneb/232/187/
Jesrad Seraph
Nonsense
Join date: 11 Dec 2004
Posts: 1,463
09-05-2005 02:21
Neat hack :) I'd love to see more support for 3D display systems like this.
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SuezanneC Baskerville
Forums Rock!
Join date: 22 Dec 2003
Posts: 14,229
09-05-2005 10:51
This sounds quite impressive to me.

I recall mentioning to someone using two avatars to get two viewpoints for use with stereo lcd monitor glasses, putting the avatars on a vehicle using the lsl camera control functions. I didn't think about the fact that the signals would not come in synchronously.
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Howie Lament
Registered User
Join date: 22 Apr 2004
Posts: 30
09-05-2005 11:01
You should be able to drive a 3d display from one computer with the right drivers.. nvidia has a 3d mode that looks at the z-values of the scene to render in stereo. I'm not sure if it's able to drive two separate displays though, it interlaces video for use with shutterglasses
Iron Perth
Registered User
Join date: 9 Mar 2005
Posts: 802
09-05-2005 11:17
Wow, that's really incredible.
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Ardith Mifflin
Mecha Fiend
Join date: 5 Jun 2004
Posts: 1,416
09-05-2005 11:24
I predict an instant migraine if I were to try this... but it would probably be worth it.
Keknehv Psaltery
Hacker
Join date: 11 Apr 2005
Posts: 1,185
09-05-2005 12:04
Actually, the polarized method of 3D is REALLY nice. It's very natural for your eyes, and way better than Red-Blue.

Great hack, by the way. And I too seem to remember some way to make 3D programs do that naturally.
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Burke Prefect
Cafe Owner, Superhero
Join date: 29 Oct 2004
Posts: 2,785
09-05-2005 12:53
smn my partly misaligned eyes, doulbe-damn my folks for correcting the alignment for cosmetic reasons and blowing my stereo vision out of whack, along with aspet and color.
I can't enjoy 3-d movies either.
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Khamon Fate
fategardens.net
Join date: 21 Nov 2003
Posts: 4,177
09-05-2005 13:49
Way Cool and Bookmarked - Good Work
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Online Doesburg
absurd hero
Join date: 6 Jul 2005
Posts: 53
09-06-2005 09:12
Nice! I've seen similar applications that use multiple, networked 'avatars' to create more than one viewport using single-display graphics boards (using Quake mods and the like). I'm a little suprised it works so well with SL, given that the two accounts are not connected directly via a LAN but instead via an external server. The two images must get out of sync quickly!?
Jesrad Seraph
Nonsense
Join date: 11 Dec 2004
Posts: 1,463
09-06-2005 09:19
I'm lucky enough to have an undistributed client-side mutator for Unreal Tournament that is similar to another funny mod for Quake3, that splits the screen in 2 realtime stereoscopic views of the game (will get a screenshot or two as I get back home).

I'd love to have that in SL :)
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Snowcrash Hoffman
Digital mind virus
Join date: 30 Jan 2005
Posts: 282
09-06-2005 09:29
This is very cool qdot, I like to talk to you more about this in game.
qDot Bunnyhug
Robot Breaker
Join date: 19 Jul 2005
Posts: 63
09-06-2005 12:12
From 3d Vision to a metaphor on relationships... Things like this are why I use SL. XD

http://www.alwaysblack.com/forum/messages.php?msg=888.1
Strife Onizuka
Moonchild
Join date: 3 Mar 2004
Posts: 5,887
09-06-2005 12:19
I still have the polarized glasses for Disney :D
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Oz Spade
ReadsNoPostLongerThanHand
Join date: 23 Sep 2003
Posts: 2,708
09-06-2005 19:03
This sounds cool, I'll have to check it out and read more about it. :D
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Torley Linden
Enlightenment!
Join date: 15 Sep 2004
Posts: 16,530
09-06-2005 21:05
It was great fun to visit qDot inworld at his lab in Deneb and listen to him explain more about this—and many other projects he's working on in the pipeline!
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RyeDin Meiji
Reluctant Entrepeneur
Join date: 15 Mar 2005
Posts: 124
09-09-2005 11:42
VERY cool qDot! Interesting, but why use glasses? :D

Just wait a year or two for commercially affordable autostereoscopic displays and accelerator cards.
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CamperDave Proudfoot
(_)|33P\ 1337 $xor
Join date: 16 Sep 2004
Posts: 205
Nvidia
09-09-2005 20:58
From: someone
You should be able to drive a 3d display from one computer with the right drivers.. nvidia has a 3d mode that looks at the z-values of the scene to render in stereo. I'm not sure if it's able to drive two separate displays though, it interlaces video for use with shutterglasses


Which NVIDIA card supports this?
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Beatfox Xevious
is THOUSANDS OF PEOPLE
Join date: 1 Jun 2004
Posts: 879
10-02-2005 13:08
From: CamperDave Proudfoot
Which NVIDIA card supports this?

All NVIDIA cards should be able to support it, as far as I know. Go here for their latest stereo driver. You'll need to make sure your graphics driver and stereo driver are the same version, though.

I've used my shutterglasses with SL via the NVIDIA stereo driver, and the results are quite impressive. Best not to do it for too long, though, as you may start to feel a bit headachey and queasy after extended use.
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Nyoko Salome
kittytailmeowmeow
Join date: 18 Jul 2005
Posts: 1,378
oh yes, PLEASE!! :)
10-02-2005 13:25
more 'real' 3D instead of 'hey, our graphics cards will do 3D - on a 2d MONITOR!' PLeeeease... disconcerting to hear about 3d when they ain't really talkin' 'bout the 'real thing'!! :)
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qDot Bunnyhug
Robot Breaker
Join date: 19 Jul 2005
Posts: 63
10-02-2005 13:34
Yeah, that's the nice thing about our system, it's pretty easy on the eyes. It was originally built to measure driver fatigue for remote human-controlled driving of Lunar rover missions.
Fatal Raine
Registered User
Join date: 12 Jan 2005
Posts: 48
Similar
10-02-2005 15:47
You get a Similar effect (to some extent) by taking two identical pictures, placing them side by side, and simply crossing your eyes so that the double images mesh together.

Example: Look at the middle of this picture and slightly cross your eyes so that the images look as if they've met in the middle, meshed together. It gives the picture the illusion of depth.

If im wrong and this is NOT what you're doing please tell me so I dont look so stupid next time c(: ^_^
Beatfox Xevious
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Join date: 1 Jun 2004
Posts: 879
10-02-2005 17:17
From: Fatal Raine
You get a Similar effect (to some extent) by taking two identical pictures, placing them side by side, and simply crossing your eyes so that the double images mesh together.

Close, but you're missing one crucual step: the images need to be from two slightly different viewpoints, just like our eyes see things from two slightly different viewpoints. If you use two identical images, then no part of the merged picture will look any closer or further than any other part... which kinda defeats the whole purpose of making it stereo. :p
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Beatfox Xevious
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Join date: 1 Jun 2004
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10-02-2005 17:25
From: Nyoko Salome
more 'real' 3D instead of 'hey, our graphics cards will do 3D - on a 2d MONITOR!' PLeeeease... disconcerting to hear about 3d when they ain't really talkin' 'bout the 'real thing'!! :)

Err... what do you mean by this, Nyoko? The NVIDIA stereo drivers aren't meant to be used alone, they're intended for use with LCD shutterglasses. It produces 3D that's just as "real" as the method qDot is talking about. :)
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qDot Bunnyhug
Robot Breaker
Join date: 19 Jul 2005
Posts: 63
10-02-2005 20:05
Beatfox, I think they meant "3D" in terms of perspective corrected graphics in games shown on a monitor in 2D. All the math considers things in >2 dimensions, but the end result is a 2d picture even though we call it 3d :)
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