Comments on: Does stereoscopy (S3D) matter ? http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/?utm_source=rss&utm_medium=rss&utm_campaign=does-stereoscopy-s3d-matter Virtual Reality for all Wed, 14 Dec 2011 10:13:26 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: JulienW http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54111 JulienW Sun, 02 May 2010 10:31:48 +0000 http://cb.nowan.net/blog/?p=907#comment-54111 As a basic user, I do feel there is a big difference in stereoscopy, depending on if the object is behind or ahead of the screen. behind the screen : it's like you say, the sensation could be the same using only parallax ahead of the screen : we really can feel if it is activated or not. Anyway, I'm not sure it's possible to use parallax for objects ahead of the screen ? As a basic user, I do feel there is a big difference in stereoscopy, depending on if the object is behind or ahead of the screen.

behind the screen : it’s like you say, the sensation could be the same using only parallax
ahead of the screen : we really can feel if it is activated or not. Anyway, I’m not sure it’s possible to use parallax for objects ahead of the screen ?

]]> By: Maxim Lysak http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54095 Maxim Lysak Thu, 29 Apr 2010 12:59:46 +0000 http://cb.nowan.net/blog/?p=907#comment-54095 I've used TrackIR5, with 3-LED vector. Maybe you've used some older one? Because people often told about errors in 3 and 4 versions. As far as I know they improve precision in 5 version greatly. Linearity in measurements can be setup from they're software. By default it's nonlinear, because most games use it as nonlinear. But sure, for big distances user must use other solution. TrackIR nice for desktop gaming, sitting on the chair :) And yes, thanks for the article! :) I’ve used TrackIR5, with 3-LED vector. Maybe you’ve used some older one? Because people often told about errors in 3 and 4 versions. As far as I know they improve precision in 5 version greatly.

Linearity in measurements can be setup from they’re software. By default it’s nonlinear, because most games use it as nonlinear.

But sure, for big distances user must use other solution. TrackIR nice for desktop gaming, sitting on the chair :)

And yes, thanks for the article! :)

]]> By: Guillaume Moreau http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54092 Guillaume Moreau Thu, 29 Apr 2010 09:04:24 +0000 http://cb.nowan.net/blog/?p=907#comment-54092 Thanx, though I was one of Laure's supervisors, I didn't know her thesis was already online :-( Thanx, though I was one of Laure’s supervisors, I didn’t know her thesis was already online :-(

]]> By: cb http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54091 cb Thu, 29 Apr 2010 08:54:20 +0000 http://cb.nowan.net/blog/?p=907#comment-54091 @RasmuJ: Thank you! @Maxim : I wouldn't say TrackIR is accurate position wise.. I've made some measurements and it's far from giving accurate positions, it's not even a linear distortion ! the distortion also depends on the depth of the head .. It's nice when you don't need a precise positon, but not usable as-is for some 'real' headtracking where your screen looks like a window to another world. I don't know about the priecision of orientation though. @Guillaume : Thank you ! Here's the link to Laure's thesis : http://paristech.bib.rilk.com/5882/ @RasmuJ: Thank you!

@Maxim : I wouldn’t say TrackIR is accurate position wise.. I’ve made some measurements and it’s far from giving accurate positions, it’s not even a linear distortion ! the distortion also depends on the depth of the head .. It’s nice when you don’t need a precise positon, but not usable as-is for some ‘real’ headtracking where your screen looks like a window to another world. I don’t know about the priecision of orientation though.

@Guillaume : Thank you ! Here’s the link to Laure’s thesis : http://paristech.bib.rilk.com/5882/

]]> By: Guillaume Moreau http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54089 Guillaume Moreau Thu, 29 Apr 2010 08:05:56 +0000 http://cb.nowan.net/blog/?p=907#comment-54089 nice article ! More information on limits of stereoscopic rendering on Stereoscopic Displays & Applications website (stereoscopic.org). You can also have a look at Laure Leroy's PhD defense (in French) about the shape perception in virtual environments and reducing visual discomfort in stereoscopic rendering. nice article !
More information on limits of stereoscopic rendering on Stereoscopic Displays & Applications website (stereoscopic.org). You can also have a look at Laure Leroy’s PhD defense (in French) about the shape perception in virtual environments and reducing visual discomfort in stereoscopic rendering.

]]> By: Maxim Lysak http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54074 Maxim Lysak Wed, 28 Apr 2010 21:31:31 +0000 http://cb.nowan.net/blog/?p=907#comment-54074 By the way TrackIR - is pretty the best solution on the market for precise desktop head-tracking. Community of flight-simmers enjoy it quite a long time, check this video for example: http://www.youtube.com/watch?v=O7Tvrp5nNR8 Actually parallax effect is very strong here. I have one, and it's really accurate. It's became a standard for flight-sims and racing, however other game-genres almost have no support for such device. By the way TrackIR – is pretty the best solution on the market for precise desktop head-tracking.
Community of flight-simmers enjoy it quite a long time, check this video for example:
http://www.youtube.com/watch?v=O7Tvrp5nNR8

Actually parallax effect is very strong here.
I have one, and it’s really accurate.

It’s became a standard for flight-sims and racing, however other game-genres almost have no support for such device.

]]> By: RasmusJ http://cb.nowan.net/blog/2010/04/28/does-stereoscopy-s3d-matter/comment-page-1/#comment-54073 RasmusJ Wed, 28 Apr 2010 20:14:43 +0000 http://cb.nowan.net/blog/?p=907#comment-54073 Thanks, great run through the differences :) Certainly, I can see the arguments of stereoscopy when working with engineering...for verifying small tolerances and sensing overlaps. Thanks, great run through the differences :)
Certainly, I can see the arguments of stereoscopy when working with engineering…for verifying small tolerances and sensing overlaps.

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