Originally Posted by qphillips06
nVidia's 3D technology is the same frame sequential 3D used on Panasonic and others TVs this year. I think you can also use polarized and traditional 3D glasses on the nVidia gpus. I saw a demo last summer using all the different glasses.
Yes, nvidia supports using their glasses with the new 3d tvs.
the output of the video driver is configured in the control panel on the computer.
it then sends the proper format, as specified by the user for a given attached tv.
hence there is no 'single' nvidia format.
available output formats for the video card include :
120hz alternating L and R (this is the typical 3d lcd monitor approach)
60hz checkerboard (~half rez)
60hz double wide (left and right images sent as one extra wide image)
60hz double tall ( same as double wide )
60hz interlaced (half rez)
48hz alternating L and R (this is the 1080p spec for 1.4a - and so far the only verifiable 1080p mode for the vt20/vt25, via spec compliance)
and a few more...
When it comes to display output, all active shutter 3D displays will alternate left and right views, blocking one or the other. Usually at 120hz.
Input and output rates do not need to match.
Displays can simply repeat single 3D frame pairs over and over a number of times (output rate > input rate ... albeit outputting the same thing over and over).
What's lame is that we're out of bandwidth near full HD @ 120hz.
60hz per eye (including black spaces between frames, caused by the shuttering) makes each eye see the equivalent of a CRT @ 60hz (image->black->image->black ...).
Which if you've used for an extended period of time (I have), causes eyestrain and headaches. Especially when going from a 120hz (true 120 input) 2D display and being adjusted to shorter black gaps.
note : you can go 240hz to avoid this. 120hz per eye (Each eye seeing the same image twice).
The polarized displays don't have the black gaps, and are *much* easier to look at. Eyestrain is much smaller with polarized - albeit ghosting can be significant at times.