3d glasses question
Sun 2011/01/09 21:44 JST
Got this pair of 3d glasses with the Sony Times magazine last month. Do you know what type of 3d glasses is this?
It's lens is white transparent and works well on the color red, the parts with red color will look like leaping out from the magazine.
Aren't normal 3d glasses is red cyan ? but this is pure transparent no color.
Maybe Passive polarized glasses
3d glasses used in most of Singapore's cinema showing 3G movies is also transparent clear....
Could b used to view movies shot part 3d n 2d (eg. Tron:3d)
Here's a good wiki for all this new 3d polarised glasses stuff... plenty cool, I say. http://en.wikipedia.org/wiki/Polarized_3D_glasses
Yeap, Passive Polarized Glasses. The only reason we can call it "passive" is because it's on carboard. XD The ones used on the 3D TVs now are Auto-Polarized Shutter Glasses whose lenses have shutters that move accordingly with the image on the television. Passive Polarized are often used in Cinemas.
Are ChromaDepth glasses. Clear lenses with prism-type surface etched in.
[ Is Ojou-Sama's native vision mode. ]
I did not see this comment while I was typing my reply out earlier. Went and looked, here's their site:
http://www.chromatek.com/
They have the same explanation as me, yes... but the polarised lenses are sheer genius, even if they wind up making you buy two pairs instead (one for screens, one for media :( )
I think I might go looking for a pair myself, seeing as how simple it apparently makes doing 3d. :D
Probably your typical stereoscopic 3D glasses. All of the glasses given out at the Empire cinemas near my house are clear transparent plastic as well.
The giveaway characteristic that suggests what type of passive 3d is at work here is:
"works well on the color red, the parts with red color will look like leaping out from the magazine."
I believe that this is essentially using color to define depth of an image, one of the cheapest and easiest ways to get an image to look 3d.
Essentially, you define two opposing colors as the closest and farthest parts (in terms of apparent closeness "in 3d" to you), and then switch between other colors in a consistent series of ranges to suggest variations in depth. different colors could be used as min, max bounds, but the rule is that you must start with a very strong color up front, end with a very cool color where the image is meant to be the furthest, and the progression of colors used to determine depths in between must clearly go from warm colors to cool colors gradually and consistently as the color is used on a object that goes further away from view apparently.
The effect is extremely pronounced in a lot of competent artwork, still and animated. In many art schools that properly teach the use of color, it is not uncommon to hear suggestions that colors be chosen for a image such that warmer colors make the main subjects stand out while cooler colors are used to make less important things and backgrounds recede... This trick is usually a matter of neural processing rather than actual light hitting retina because at the range of human eyesight, any differences in the speed of light due to color should only shave or add fractions of a moment in time to how fast all the colors on an object get to you.
What impresses me is the glasses - yes, they are polarised. Apparently they are polarised in a way that may encourage the brain to further extend the difference in perceived timing between red light hitting the eyes and the rest of the light hitting slower despite the fact that at the distances you are reading that magazine, said difference should be almost minimal to become almost purely a matter of perception rather than actual sight! I'm not really sure I've seen such glasses, though they could be made, possibly.
I need to go hunt and read. If anything more surfaces, I shall enlighten you as well >:D
Great explain, thanks for answering me.
I put it on and look at the lights and the light bend and expand left right according to my angle.
that's the problem with passive polarized 3d from a printed image - you have to interpret all the 3d in the image from just one image. In a cinema, you could at least swap images as fast as you need (and can swap them, obviously - there's only so much framerate you can get on film) , or even blind the user in alternate eyes as well in tandem with the image swap if the glasses were active polarized.
On the flip side, there's one good thing about passive polarised 3d solutions like this and Real-D - apparently it's possibly to make glasses that REVERSE the effect such that it flattens the image much more easily, which is great for people who can't cope with 3d glasses because of vision and neural wiring issues. Active polarizing 3d? I can't even imagine how to reverse the effect from 3d to 2d in basic steps, I don't even think it's possible...