| Author | Message | ||
     LOKO Rating: N/A |
ok, I heard that 3d glasses are bad becuase they cause headaches, blured vission and etc. but it take a whle to get use to. so that dosent bother me, and 2 hours max. but what about long term affects? if I use them every day for let say 2 hours, what will happen to me or my eyes in 20 years? oh and 1 more thing, I use nvidia cards, what is the best glasses out there to run games on? Ive been looking at the eyeforce gaming glasses. thank you | ||
| Alatar Rating: N/A |
I don't know about 20 years but we have several in-house users who have used them on a regular basis for six to eight years, without noticable effects. "Regular basis" for us would mean a typical production schedule -- twelve months of six hours per day, followed by six months of ten hours per day, followed by six months of very occasional use (15 minutes twice a week). | ||
| Alatar Rating: N/A |
Also, I would take issue with the headaches statement. We have never had reports of problems with headaches from our users. My belief is that this is because we actually model the 3D correctly for the exact geometry of the workstation the user is sitting in. In other words, we know where the user's eyes are and the image size on the screen, and each 3D point is calculated and presented by extending a line from the eye to the point and noting where that line intercepts the screen. This approach guarantees that the users are never required to go walleyed or to look at anything that is exactly the same viewing geometry in the real world. By contrast, the approach discussed more often here, that of taking two rendered images and then shifting them left or right until the parallax seems correct, lends itself to misadjustment, making unnatural demands on the viewer's eyes, and, for a given image pair, is mathematically incapable of presenting correct geometry in more than a few specific viewing environments. | ||
| StereoGamer Rating: N/A |
Two comments: 1. I have been doing stereoscopic gaming for over 9 years and have no negative effects. (this is anywhere from 2 to 16 hrs per week) 2. I don't know what product Alatar is talking about but I want to make it clear that he is NOT talking about the NVIDIA driver used for stereoscopic gaming. This driver does not do what he describes, it renders two views directly from the 3D data and as such is true stereoscopic rendering. The only dependancy they have is on the correct geometry of the game. Since this cannot be guarranteeed by them, that is why they provide ratings for every game and actually list the known issues. This allows a user to know what he is getting into prior to playing a game and adjust playing time or number of breaks or whether to play the game at all in order to minimize potential for headaches and eyestrain. - StereoGamer | ||
| Alatar Rating: N/A |
Yes, true, I wasn't referring to nVidia gaming -- although nVidia gaming does allow tweaking of the stereo enviroment controls in it's control panel. This, of course, is as it should be -- a fixed "we know best" approach would be horrible. But it does reenforce the "viewer beware" point that StereoGamer makes: there is possibly (even probably) a close relationship between headaches and incorrect stereo caused by: - erroroneous settings in the nVidia stereo controls; - incorrect parallax settings in stereo movie players; - vertical or horizontal misalignment in dual-projector systems; - uneven brightness, contrast, gamma and/or focus in dual projector systems; - incorrect original rendering algorithms; - misaligned dual-camera rigs; etc. Unless you pay strict attention to ensuring all of the above (and more) are correctly set up and locked down to prevent change, you are at risk of giving people headaches and worse. | ||
| LOKO Rating: N/A |
ok so let me get this strait, 2 hrs max per day is the reccomended limit right? | ||
| Anonymous Rating: N/A |
Best like all health issues to do your own research. Like smoking, eating too much, drinking, drugs, driving cars and women! Not to mention dangerous sports like horse riding, scuba diving, paragliding, base jumping... Here is one link straight off google (about 5secs of work). http://www.birket.com/strobes/Library/Strobes%20v%20Epilepsy.htm Essentially the issues is for bright lights strobing between 5 and 70 hz. The key area being between 15hz and 20hz (far to low for a major effect on stereo gaming). I would suggest that for a long time computer monitors worked at between 50 and 70hz max and there were not hundreds of people falling down. Further its only in the last few years we've had 100hz TVs and most TVs work at 50 and 60 Hz... Few problems there (apart from soap opera addiction) with people watching 6 to 8 hrs a day for years and years.... Still EVERY game carries an epilepsy warning and to my knowledge (given the negativity in the popular press about gaming) no instances have occured. So there you have it. As with anything you pays your money and you takes your chance. | ||
| Alatar Rating: N/A |
I always thought that the epilepsy warnings were about game-effect artifacts (e.g. repeated flashes from machine-gun fire) being displayed at a few Hz rather than the actual display refresh frequency. After all, as you say, people have been watching TV at 50 and 60Hz for 60 years and we don't have epilepsy warnings on those. | ||
| Alatar Rating: N/A |
> ok so let me get this strait, 2 hrs max per day is the reccomended limit right? I am not sure where you got that from but as I said, we have users who do 10 hours a day for weeks on end and there are no complaints. However, they are not gaming. I can see why a two hour limit on gaming would be a good thing, but not specifically because of stereo viewing. Maybe I can express my own opinion best by putting it in terms of rules I use for my own children: their limits for computer gaming are exactly the same for stereo gaming and normal gaming. | ||
| Ku Rating: N/A |
To add alittle, I will get a headache if something is pressing aginst my forehead.. But as for 3d gaming, there would have to be little ghosting and have like you 2 said the 3d pretty good, not trying to focus on 2 images.. I've been playing for years also and only some games give me a really bad headache no matter what I do. You ever play the game time splitters on the P2? For some reason that and another one that moves like that kills my eyes.. More dizzy then anything else. All I do is play FPS and why that one bothers me is wierd.. So to LOKO, man you have to try yourself and see what you can handle, your eyes will have some strain at first getting 3d to look good but onces relaxed, it's another world of PLAYIN... Ku | ||
| LOKO Rating: N/A |
ok thx guys for all you'r help, only one more thing tho, do the glasses work on LCD screen? I play on CRT too, but CRT destroyes the eyes, that I do know threw personal use, I'm glad to be playing on LCD now becuase eyes damage is not there anymore. CRT shoot a laser color beam into the glass dots on ur screen, but gets a bit threw to, while LCD is a sort of crystal that changes color, there for no laser, and pratically no dmg. Thx | ||
| Pob! Rating: N/A |
No they don't work with LCD screens. Modern CRT's have very low emmisions. CRT's do not use a laser beam! So far as headaches go, I have never had one after gaming. However, I do have an issue with the laser sight, as it contstantly varies in convergence as you look around in games and your eyes are always trying to bring it into focus... |
