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Polarized stereo 3D using 2 projectors + cheap foil filters

Discussion in 'DIY peripherals' started by Skaut69, Jun 20, 2010.

  1. Skaut69

    Skaut69 Member

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    They are just two different types of the same solution. Looks like linear polarization was the first one and after they found that with issues created that circular one. Basically to get rid of that dis concentration when you move your head (loose of 3D effect).

    Since right now i am at circular one - i let you know what is the difference when i`ll get linear one.

    What about them three screens. Are you about 3x Monitors or those 3D Ready projectors ?
  2. Fahim

    Fahim Member

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    well I wanted 3x 3d monitors (120hz) but then when investigating the shutter glass method I realised thier is potential health hazard. So I am scared of this. I don't like this idea of shutting one eye off each frame. That is scrary stuff,
  3. Skaut69

    Skaut69 Member

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    You`ll see yourself on my 3D Vision. It makes me feel like before some school exam. Huge pressure on head. Some people ignoring that because next day nothing is really wrong with yours perception or health. Nothing what you can see or feel.

    That is why i don`t trust it. I am person who dosen`t wait to see results. When i feel wrong it must be something going on what sooner or later will affect me.
  4. Skaut69

    Skaut69 Member

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    If there is someone who isn`t scared of Shutter 3D i encourage him to get that 3x projector setup with Rotated Desctop. 2160x1280 - that resolution means huge field of view, specially vertically. Imagine yourself how much of picture you use to not see with 1080p res. I have checked it and projector in this way gives you lots of view to the top and bottom of screen.

    I know that the most important is perception to the side but take a look on that additional advantage since you already have quite good wide picture.
  5. Fahim

    Fahim Member

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    Zi6_0053.JPG

    I want to like get a 40inch silver screen and do a projection 3-d on it.

    As you can see i sit quite close anyway so that means the 3-d should feel very intense?

    Is it possible.
  6. Cleeve

    Cleeve New Member

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    It should be mentioned that *ALL* methods of 3D--polarized, shutter, whatever-- assume you're eyes are sitting on the same plane along the horizon. So no matter what, the more you tilt your head, the more things will look messed up. At 45 degrees things will look bad on any setup.

    The advantage of RealD (or a shutter glasses setup, for that matter) is that the polarized filters won't ALSO be messing up your vision like linear filters would. But the plane of the display will always prevent you from tilting your head and getting a perfect effect out of it.

    Having tried both, I do think linear filters work very well. It's somewhat unnatural to tilt your head when watching a movie anyways, unless you like to watch when lying down--and if that's what you're doing you're still going to end up with visual anomalies in 3D no matter what method you choose. But RealD circular polarized filters do help you tilt your head a couple degrees more than linear filters do, it's true.

    Hope that helped a bit. :)
  7. Fahim

    Fahim Member

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    Well that is needed for us drivers with motion. When the seat tilts so does the head.
  8. Skaut69

    Skaut69 Member

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    Thinking about what Cleeve wrote i remind myself driving with motion set to max and with TrackIR. I have those circular ones and i didn`t have any problems with clarity of the picture or 3D effect.

    Like Fahim already mentioned, for us it is quite important to keep picture clear - thats why circular filters looks like a better choice.
  9. Skaut69

    Skaut69 Member

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    Cleeve - do you have any experience with those Nvidia 3D Ready Projectors like Acer H5360?
    If someone want to go for that 3x Rotated one some point about quality of the picture, created by this one could be helpful.
  10. Skaut69

    Skaut69 Member

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    Fahim - only problem might be Throw Ratio of your projector. You don`t have much space behind you - thats why better think about projector with optical zoom option. If you will get one there will be no problems to go even farther - i mean some 60inch.
  11. Skaut69

    Skaut69 Member

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    Source: FUDZILLA

    Six million brits can't see 3D
    Written by Nick Farrell

    Telly and film revolution could be scuppered
    The TV revolution to 3D could be scuppled because too many people have poor poor binocular vision.

    UK-based charity Eyecare Trust has claimed that almost 12 per cent of Britons cannot view 3D images and these will be the people who suffer from headaches after viewing a 3D film. In a press release the Eyecare Trust said that some people's brains are unable to correctly process the individual images that are transmitted to it via our left and right eyes.”

    Many are unaware that they have poor binocular vision because your brain will often try to compensate for any visual inadequacies. But it could mean that all the new gear from outfits such as Nintendo, Sony and Samsung, who are planning to launch a number of 3D products over the coming year, may be unsuitable for a large portion of potential customers.
  12. egoexpress

    egoexpress Active Member

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    almost 12% is surely not too many.
    It's a pity for them though...

    Workarround for headaches...keeping one eye closed while watching 3D :brows:
  13. Cleeve

    Cleeve New Member

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    Yes, I'm actually inserting the story into our content management system right now. It will probably go live in a week or so.

    Great projector, I was quite surprised by the quality and ease of use for 3D applications.
  14. Skaut69

    Skaut69 Member

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    Found different type of aluminum sheet. This one is ANODIZED ALUMINUM. Thing is that this one is completely dull - doesn`t reflect any light! Surface is clear (smooth) enough to get high quality picture and very tough (hard to accidentally scratch).
    I don`t see any picture differences between that what i was using lately. Even better - now i don`t have to struggle with shape of the screen to get proper brightness without any disturbing me reflections. Screen can be finally flat which means no problems with sharpness. That was small issue to the last (curved) screen. When it is shaped this way - side parts are with the different sharpness of picture than center of the screen. That also makes problems when comes to set properly 3D effect.

    This might be big step. Only thing to find out is how much it will cost to get size about 2500x1500.
    I`ll let you know.

    Attached Files:

  15. Skaut69

    Skaut69 Member

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    I have a friend who is one of those 12% British - those who can`t see 3D effect. Thing is that it makes problem only when he works with shutter glasses on his Sony rig. I didn`t check him how it is with Nvidia 3D Vision but he was surprised when he managed to see that on polarized screen. He watched when i was playing for about two hours and didn`t feel wrong. When he jump back on his PS3 he just couldn`t get proper perception. Another time he was just able to see everything flat - even worst than 2D - like he said.


    Another thing.
    I have some trick for those games which doesn`t support 3D effect or looks wrong. In Windows Desktop set two projectors to clone mode and one of the projector`s picture move to the side (just to get separation). All rig is as it was with all filters and glasses - just without 3D drivers on. When it comes to game picture will be, let say half 3D. You will get some kind of depth in the field and geometry of the objects but it will not be the same as it is with drivers optimization. You have to see yourself if it is worth to play like that. I used it to play Crisis and that was great. One more thing - this doesn`t require extra power for second view!
  16. Frakk

    Frakk Active Member

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    Good job! Do you loose any 3D picture quality with the anodized aluminum? The extra plating on the sheet could affect the polarization of the light, which could affect the picture as well. It is great if there are no negative effects!

    It is also a good result that your friend finds the polarized 3D more comfortable! The flickering of the shutter glasses cannot be ignored, and even those who don't notice the effects can suffer from long term use.
  17. Fahim

    Fahim Member

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  18. Skaut69

    Skaut69 Member

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    I`ve put this small board in the middle of screen and played for one hour. Forgot it was there. It means - sharpness, colors, brightness basically quality is the same. I can say - even better because of lack of bright light disturbing you. That makes whole picture equally bright and visible.

    In case of 3D issue. Did anybody noticed that this problem appear when shattered glasses start to be so popular. IMAX and RealD 3D exist for long time and nobody ever went from cinema with weird question that was in 3D ???.
  19. Skaut69

    Skaut69 Member

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    I`ve checked one more time in case of depth and since it is easier to set up 3D effect because of flat surface of screen then i have to say that will be the best option at the moment.
    Don`t be mislead by look of the surface - you don`t see this when it comes to 3D. It is kind of strange how it works - suddenly whole picture is getting bright, so clear nothing compare to that what i had on white wall in 2D. I wish to be able watch movies like that.

    Like i said - i can`t describe it but effect is astonishing !!!
  20. Skaut69

    Skaut69 Member

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    Soon Me and Fahim will see each other to give it a test. If someone lives close to us then he is welcome too. :cheers: