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3D glasses require CRT monitor???

M

MulLa

Golden Member
Hi,

A customer recently purchased an ASUS V8200 Delux and he is kinda complaining that the 3D glasses is giving him a headache. Was just wondering if 3D glasses work for LCD monitors since he's got an LCD monitor. Or would they only work for CRT monitors? Or finally maybe it's just him 🙂
 
Yo MulLa,

As stated in the V8200 Delux manual on pg43 and pg46, you should not use the glasses for extended periods of time otherwise you will feel like crap (not a direct quote). I own this bad boy too, and with a nice 19" CRT these damn 3D glasses make my head hurt in <30 seconds regardless of refresh rate. Basically the 3D-VR technique works for a fraction of the human population and that fraction is not 1. It is also stated in one of the readme files that the 3D effect requires the two eyeballs of the user to not have some kind of imperfection (I forget which one), so basically buying/using the 3D glasses is no guarentee that they will work for you but in the off-chance they do then lucky you...or something to that effect. So your customer's issue may be the LCD screen or may be just that him and the 3D technology are a no-go, he's fallen off the evolutionary ladder and hopefully he did not procreate as that will have surely shackled and imprisoned his offspring into a life of hell as all their collegues continue to evolve and adapt to the technology of the 21st century turning your customer and his family into bio-friendly TV remotes (I already castrated myself to ensure my lack-of-techno-genes do not pass onto further generations - ok, that was a joke, hopefully no one thinks I'm serious...).

-Phil

 
Your customer's problem is definately the LCD screen. 3D glasses are netorious for causing headaches, but for most people, that only occurs at low refresh rates(<100hz). Crank it up to 120, 150, ect, and for most people, the headaches go away. That said, the best LCD refresh rate last time I checked was every 25ms, which translates into a refresh rate of 40hz. 40hz is way too low for 3D glasses.😱
 
Could the low-refresh rate issue be because the 3D glasses essentially cut the refresh rate in half? So you would need 170Hz refresh rate to have the same 'flicker' as 85Hz?

Edit for my Stuipd Math Skills.
 


<< Could the low-refresh rate issue be because the 3D glasses essentially cut the refresh rate in half? So you would need 170Hz refresh rate to have the same 'flicker' as 85Hz? >>



That is correct. The glasses alternate between letting your eyeball see the screen and not see the screen which must be synchronized with the screen refresh rate of the screen. So if you run the screen at 100Hz and the glasses black-out the screen for each eye every other screen-refresh then your eyeball is essentially seeing the screen refresh at 50Hz.
 
The 3D Glasses do work with an LCD monitor.

The way the '3D Glasses' work is the left and right side of the glasses are darkened for a split second one at a time, during which time the video card driver alters the displayed image to modify the perspective of the 3D scene for the right or left eye. Basically each eye sees the scene from a slightly different perspective.
If you have less then perfect vision they pretty much don't work at all for you.
Also, when using the shutter glasses the refresh rate of the monitor is effectively halved as the eyes see it alternately.
To play a game at 1024x768 with a refresh rate of 85Hz, you would then need top play it at a refrsh rate of 170Hz to get the same experience when using the shutter glasses. So unless you have an incredible monitor it is very strenuous on your eyes to view the image, as in most cases you will be viewing an image that equates to roughly 40Hz.

You should never use the glasses for longer then 20-30 minutes under any conditions as due to the way the brain staggers and adjusts the image your eyes are seeing alternately the stress on your eyes is very significant, and can easily cause nausea and headaches.
If one was to use the glasses for a prolonged period of time they can cause permanent damage to your eyesight.

This is only a brief explanation, but in short experiencing headaches is common when using the shutter glasses, and you should warn your customer about the side effetcs of using said glasses.
The instruction manual for his graphics card should come with a subsection explaining the glasses and how they work, as well as a warning not to use them for long periods of time or if you use prescription glasses.
 
Gee thanks for all the informative responses that I got from you guys.

FYI Since I don't have that kind of money to purchase one myself I can't refer to the manual. Wonder how can the customer make so much $$ and still failed to read the manual :|
 


<< Gee thanks for all the informative responses that I got from you guys.

FYI Since I don't have that kind of money to purchase one myself I can't refer to the manual. Wonder how can the customer make so much $$ and still failed to read the manual :| >>



No prob, that's why I gave you the page numbers in my post - so you could tell the customer to go read page XX in his manual - I wasn't trying to diss ya or anything 😉

-Phil


 
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