AVS Forum banner
1 - 20 of 61 Posts

·
Registered
Joined
·
388 Posts
Discussion Starter · #1 ·
Can the new 3D box optoma is coming out with work with Playstation 3D when setup to use dual 1080p projectors? Would you just use an HDMI splitter and let the boxes direct the left and right image to the correct projector? I know the 3D-XL hasn't be released but if anyone has some idea of how this will work or if you need a computer to run 3d games it would really help
 

·
Banned
Joined
·
19,253 Posts
The answer is . . . no one really knows and won't know until the STB is released.


We can guess that you will use a repeater to make one stream into two then somehow using a menu supplied in the 3DXL determine which one is the Left view and which is the Right View.


On the back of the 3DXL there is a switch - left for 720P 3D and right for 1080P L & R view selectable.
 

·
Registered
Joined
·
388 Posts
Discussion Starter · #6 ·
yeah I saw that, called optoma usa they confirmed its coming out and said the europe site wasn't supposed to post it yet... it lists the sources its compatible with but doesn't describe how the dual setup works with a single HDMI source such as a ps3
 

·
Registered
Joined
·
312 Posts
horizone:


You are correct, the switch has three positions.


The left position = " 3D 720p (Default value): When input 3D signal, system will output HQFS [email protected]"


The middle position = " L: When input 3D signal, system will output [email protected](L) signal."


The right position = " R: When input 3D signal, system will output [email protected](R) signal."


The middle, and the right positions are used to, quote: " Switch the "Output Mode" to change output signal in two 3D Projector Adapters applications."


This info is from the owners manual, page 11.

http://www.optoma.co.uk/uploads/manu...xl-M-en-GB.pdf
 

·
Registered
Joined
·
388 Posts
Discussion Starter · #9 ·

Quote:
Originally Posted by Elkhunter /forum/post/19611910


horizone:


You are correct, the switch has three positions.


The left position = " 3D 720p (Default value): When input 3D signal, system will output HQFS [email protected]"


The middle position = " L: When input 3D signal, system will output [email protected](L) signal."


The right position = " R: When input 3D signal, system will output [email protected](R) signal."


The middle, and the right positions are used to, quote: " Switch the "Output Mode" to change output signal in two 3D Projector Adapters applications."


This info is from the owners manual, page 11.

http://www.optoma.co.uk/uploads/manu...xl-M-en-GB.pdf

So can you confirm the dual projector setup with work with a ps3 by simply splitting the hdmi output, or do you still need a graphics card that can send out a left and right image thru 2 outputs?
 

·
Banned
Joined
·
19,253 Posts

Quote:
Originally Posted by jmcguire525 /forum/post/19612043


So can you confirm the dual projector setup with work with a ps3 by simply splitting the hdmi output, or do you still need a graphics card that can send out a left and right image thru 2 outputs?

You will need two 3D-XLs and an HDMI 1.4 repeater for your PS3 when in 3D mode.


Also note that the 3D-XL only outputs [email protected] in dual 3D projector mode so you can't pass a 3D BD signal at native [email protected] then use the projectors to step it up to say 72Hz per image:

Quote:
The middle position = " L: When input 3D signal, system will output [email protected](L) signal."


The right position = " R: When input 3D signal, system will output [email protected](R) signal."
 

·
Registered
Joined
·
388 Posts
Discussion Starter · #11 ·

Quote:
Originally Posted by Lee Stewart /forum/post/19612179


You will need two 3D-XLs and an HDMI 1.4 repeater for your PS3 when in 3D mode.


Also note that the 3D-XL only outputs [email protected] in dual 3D projector mode so you can't pass a 3D BD signal at native [email protected] then use the projectors to step it up to say 72Hz per image:


Ok so 3d BD is native 24hz but then it outputs at 60hz, how is this going to mess up a dual projection setup? not being sarcastic I just dont understand that part of things so well
 

·
Banned
Joined
·
19,253 Posts

Quote:
Originally Posted by jmcguire525 /forum/post/19612289


Ok so 3d BD is native 24hz but then it outputs at 60hz, how is this going to mess up a dual projection setup? not being sarcastic I just dont understand that part of things so well

The 3D-XL performes the 3:2 cadence that converts 24Hz to 60Hz. When that is done, you will get some form of frame judder. Some people notice frame judder more than others.


Many HDTVs and projectors today will accept a 2D 24Hz signal then using an even number multipler that repeats the frames (3,4 or 5) and will display 24Hz at 72, 96 or 120Hz which gets rid of frame judder. 24 doesn't go into 60 evenly.

http://www.presentationtek.com/2009/...s-32-pulldown/


Those that notice frame judder will see the images "jerk" on a regular basis as opposed to being smooth, even flowing. It is easily seen when you watch the credits roll at the end of a movie.
 

·
Registered
Joined
·
76 Posts

Quote:
Originally Posted by Lee Stewart /forum/post/19612478


The 3D-XL performes the 3:2 cadence that converts 24Hz to 60Hz. When that is done, you will get some form of frame judder. Some people notice frame judder more than others.


Many HDTVs and projectors today will accept a 2D 24Hz signal then using an even number multipler that repeats the frames (3,4 or 5) and will display 24Hz at 72, 96 or 120Hz which gets rid of frame judder. 24 doesn't go into 60 evenly.

http://www.presentationtek.com/2009/...s-32-pulldown/


Those that notice frame judder will see the images "jerk" on a regular basis as opposed to being smooth, even flowing. It is easily seen when you watch the credits roll at the end of a movie.

This is one of my concerns also with the 3D-XL. I have made a dual projector setup while waiting for the 3D-XL. I don't want to mess with HTPCs.


Someone said Optoma was considering adding 24p before release but since the documentation already seems to be finalized I am having doubts it will be in. 3D-XL looks firmware upgradable though.


But, my point is - if you are going to run this from a PS3 you should be able to disable 24p in the PS3 and the 3:2 pulldown will happen at the source which might be better.


In my case I am using projectors with frame interpolation which eliminates most of the visible judder.
 

·
Registered
Joined
·
388 Posts
Discussion Starter · #14 ·

Quote:
Originally Posted by Lee Stewart /forum/post/19612478


The 3D-XL performes the 3:2 cadence that converts 24Hz to 60Hz. When that is done, you will get some form of frame judder. Some people notice frame judder more than others.


Many HDTVs and projectors today will accept a 2D 24Hz signal then using an even number multipler that repeats the frames (3,4 or 5) and will display 24Hz at 72, 96 or 120Hz which gets rid of frame judder. 24 doesn't go into 60 evenly.

http://www.presentationtek.com/2009/...s-32-pulldown/


Those that notice frame judder will see the images "jerk" on a regular basis as opposed to being smooth, even flowing. It is easily seen when you watch the credits roll at the end of a movie.

So there would be no way to watch a 3d BD disk with the ps3 on a dual projection setup without the judder correct?
 

·
Registered
Joined
·
2,163 Posts
good news from optoma!


i talk today with them why there is no way to output a 1920x1080 24P signal

(the have just 1920x1080 60p and that have this 3:2 Motion bug inside

when 3D Film is the source)

and they told me that the unit itself can do it they just need a new software

to support also 1920x1080 24p out and this new software will be ready very soon.


so you can do this softwareupgrade soon.


thats good news and all the guys that have already a 2 pr. setup with

polarizer will like to hear this.


for others its a good option to buy 2 full hd pr.dlp that support 24 p and display it right at 24p.

than a silver screen and you have

a perfect 3d set up that have a lot of light and no motion bug at all.
 
1 - 20 of 61 Posts
Top