» Thu May 19, 2011 6:06 am
jgonz2848 well basically there's many ways to mimic 3D....this is just to help you understand what goes on when a game is producing 3d images.
in a basic point of view to help you understand... try looking at something abit far away with your own eyes.. then close one eye, first left then right eye... you'll see the far away image shift its location when u change ur eye.
Your left eye actually sees the image at a different angle and viewpoint than your right eye. Your brain combines both viewpoints and u get what you normally see through both eyes.
So in computer games, to mimic this... for every still frame of a game... the computer creates 2 image of the same still frame... one slightly tiltled to the left eye view point, and one more slightly tilted to the right eye view point.
The monitor cannot show both at the same time, so it shows one after another at a very fast speed (which is why refresh rate is important).
Now because its shown one after another, 3D glasses have to find a way to time the left and the right viewpoints correctly. Left image must only be seen by the left side of the glasses, and right image must only be seen by the right side of the glasses. If the 3d glasses do not match the timing of the monitor, u cannot get the 3d effect. The glasses must synchronize with the images shown on the monitor, left and right view point.
Red & Blue glasses simplify it by making each view point a different color, which will then match the different side of the glasses. (Red glasses cannot see red images, only blue images, Blue glasses cannot see blue images, only red)
Shutter glasses work by darkening or blacking out the side of the eye that is not in the use. If the right viewpoint image is shown on the monitor, the left side of the glasses is darkened or blacked out, and vice versa.
New generation glasses work in a more complicated way based on how patterns of light can be blocked. This one offers the best clarity because shuttered glasses will have a darkening effect from blocking out each eye, and also a flickering effect.
New generation glasses also doesnt need wires.. and is what cinemas use