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Old 02-15-2013, 09:46 AM   #1
EmperorZelos EmperorZelos is offline
Junior Member
 
Feb 2013
Default 3D-2D signal

This is a question I have recently gotten in my head that I seem unable to find or figure out.

I understand how modern consoles like Wii U and others send 3D signals as dual images and such that the TV then projects in the proper manner.

But in my head the 2D signal the consoles can send would be yet another picture that has to be sent through the signal, though I am not certain if this is the case.

So how does a console handle the thing about 3D or 2D? Does it send a 2D signal AND 3D signal at once that the TV picks from, or does the TV send as ignal back to the console to tell it which mode it is in and then the console send the proper signal?

Or how does it work?

Best Regards
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Old 02-16-2013, 04:01 PM   #2
Nisei Nisei is offline
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Dec 2009
the Dutch Mountains
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Default

Quote:
Originally Posted by EmperorZelos View Post
... or does the TV send as signal back to the console to tell it which mode it is in and then the console send the proper signal?
You got it.
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Old 02-16-2013, 08:53 PM   #3
Anthony P Anthony P is offline
Blu-ray Champion
 
Jul 2007
Montreal, Canada
Default

Quote:
Originally Posted by EmperorZelos View Post
This is a question I have recently gotten in my head that I seem unable to find or figure out.

I understand how modern consoles like Wii U and others send 3D signals as dual images and such that the TV then projects in the proper manner.

But in my head the 2D signal the consoles can send would be yet another picture that has to be sent through the signal, though I am not certain if this is the case.

So how does a console handle the thing about 3D or 2D? Does it send a 2D signal AND 3D signal at once that the TV picks from, or does the TV send as ignal back to the console to tell it which mode it is in and then the console send the proper signal?

Or how does it work?

Best Regards
depends. For example I had my PS3 set up on my old 2D projector, when I got a 3D projector, I connected it to it and it thought it was still connected to a 2D display, so when I put in my 3D movie it said it could not play it because the display was 2D and it can only be shown in 3D. So I made sure to change the settings and to turn the PS3 off and on again so that the film could play in 3D. But my projector has a 2D/3D button and during the film if I switch to 2D all it does is show it in 2D (even though technically it should not since the disk is only fr 3D viewing)

Basically in 3D you have a 1080p left image and a 1080p right image so the player and display need to agree on a format for transport over HDMI, for example

over-under where a 2160x1920 image is sent


or side by side

where it is 1080x3840


then the display takes that image and it could (assuming the display has that feature show only the first half of the image (i.e. 1080x1920) or split the image in two and show both for 3D.
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Old 02-17-2013, 06:25 PM   #4
EmperorZelos EmperorZelos is offline
Junior Member
 
Feb 2013
Default

I am aware of how the 3D signal itself is transmitted, the question is more how does the console know wether the TV is set to 3D or 2D? or doesn't it know and just transmit a 2D and 3D signal at once?
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