- Dec 7, 2008
- 14
- 0
- 18,510
Does anyone know how nVidia's 3D Vision works? I'd like to know if my idea's already been done.
So Playing with my 3D Glasses I got from the theater earlier this week I discovered I can black out the screen by rotating them at different angles. Not even both lenses together, just a single lens. LCD's work by polarizing light and these lenses can block them out, however my laptop screen is at a 45 degree angle and my TV is 100% horizontal. I'm sure there's a way to change polarization through electrical current, and I'm also pretty sure there's a way to detect screen updates (refresh) through software/usb. So the question is. What if someone made a pair of glasses, with lenses that change polarization from vertical to horizontal (each eye being opposite polarization) every time the screen refreshes, power and refresh info sent via USB? Would it be significantly cheaper? Then all we'd need is the graphics card to shift camera position slightly, and switch polarization in the glasses to get the 3D effect. Now I understand 3D vision works on the same principle, blank out one eye, during a refresh, then shift the camera slightly and blank the other on a refresh, and alternate like that, but are the glasses "Active shutter"? that is using LCD pixels to block all light? or is it polarized, and they're just shifting polarization and blanking it out relative to the screen like I described above? A quick way for existing users to test this is if it still blocks all light from the eye even when you look away (flickering) or if it looks normal (polarization, you wont see anything). If it still flickers/seems darker than when they're turned off, then they use active shutters and thus very expensive. However if you cant tell if they're on or off unless you're looking at an LCD, then they're polarized.
So question 1: how does nVidia's 3D vision work? Polarization, or LCD blackout?
And Question 2: Does ATi have any driver based Stereoscopy? I'd be a lot happier even with Anaglyph. I run a Radeon HD 5870 and would love stereoscopy, however if that's not possible with ATi cards (and only through games that have it as an option) or even if my card's too old, I understand.
So Playing with my 3D Glasses I got from the theater earlier this week I discovered I can black out the screen by rotating them at different angles. Not even both lenses together, just a single lens. LCD's work by polarizing light and these lenses can block them out, however my laptop screen is at a 45 degree angle and my TV is 100% horizontal. I'm sure there's a way to change polarization through electrical current, and I'm also pretty sure there's a way to detect screen updates (refresh) through software/usb. So the question is. What if someone made a pair of glasses, with lenses that change polarization from vertical to horizontal (each eye being opposite polarization) every time the screen refreshes, power and refresh info sent via USB? Would it be significantly cheaper? Then all we'd need is the graphics card to shift camera position slightly, and switch polarization in the glasses to get the 3D effect. Now I understand 3D vision works on the same principle, blank out one eye, during a refresh, then shift the camera slightly and blank the other on a refresh, and alternate like that, but are the glasses "Active shutter"? that is using LCD pixels to block all light? or is it polarized, and they're just shifting polarization and blanking it out relative to the screen like I described above? A quick way for existing users to test this is if it still blocks all light from the eye even when you look away (flickering) or if it looks normal (polarization, you wont see anything). If it still flickers/seems darker than when they're turned off, then they use active shutters and thus very expensive. However if you cant tell if they're on or off unless you're looking at an LCD, then they're polarized.
So question 1: how does nVidia's 3D vision work? Polarization, or LCD blackout?
And Question 2: Does ATi have any driver based Stereoscopy? I'd be a lot happier even with Anaglyph. I run a Radeon HD 5870 and would love stereoscopy, however if that's not possible with ATi cards (and only through games that have it as an option) or even if my card's too old, I understand.
Like you cant see out of it at all? even if you look away from the screen your one eye is still blacked out?
Facebook
Twitter
Instagram