3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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Entries Tagged as 'GeForce 3D Vision'

Some 3D Vision Monitors May Have Resolution Issue in 3D Mode

August 27th, 2013 · 11 Comments · GeForce 3D Vision

acer-stereo-3d-mode-issue

Back in 2011 when Acer released their first Acer HN274H B 3D monitor with 3D Vision 2 and 3D Lightboost technology support and I’ve got a unit for testing I have noticed that the monitor had some problems with the resolution in stereoscopic 3D mode. When it was showing something in stereo 3D mode the image was like with only half of the vertical lines per eye and not all of them showing, very similar to what you are seeing in a passive 3D monitor though there in 3D mode you get half the horizontal lines per eye. After all one of the advantages of active 3D technology is that it is supposed to be offering full 1080p resolution per eye thanks to the shutters in the 3D glasses being used. Notice on the image above how on the 3D Vision setup wizard with the screen showing the hexagon and rectangle stereo 3D test screen how the 2D text above is just fine, however the geometric figures with stereo 3D effect applied to them are like with half horizontal resolution – you see a line of green pixels for the hexagon then a line of what seems to be white pixels then again a line of green and the same goes with the blue for the triangle. Normally these figures need to be a solid color and monitors with this vertical scanline-like or checkerboard-like issue are showing them as if they are with lower resolution then they should actually be. Note that the image above is not a very closeup shot of the screen and yet the effect caused by the issue is clearly visible, so it is easily noticeable at normal viewing distance when using the display.

Back then I’ve tried pretty much anything to see where the problem with the Acer HN274H B monitor not showing the full resolution per eye was, like using different video drivers, trying different GPU configurations, playing with different cables and so on, but nothing helped. So I ended up with the conclusion that there is something wrong with the monitor itself. Nvidia was also aware about the issue when I’ve checked with them and they were looking into what was causing the problem. I should note that when testing the Asus VG278H monitor that was the other 3D Lightboost-capable monitor back at that time there were no such problems as what the Acer monitor has shown in stereo 3D mode, so apparently not all monitors were affected by this. Since that time I’ve tested a few more newer 3D-capable monitor with 3D Lightboost technology and did not see the same problem present or that much apparent at least in any of them, however I just seen a forum post with people complaining of having very similar problem with most of the newer active 3D displays on the market though not all units seem to be affected. This includes monitors such as the Asus VG248QE, Asus VG278HE, Asus VG278HR, BenQ XL2420T and BenQ XL270T, so it seems that the problem is still there and the question is what is casing it? This issue has actually been identified as LCD inversion (alternating positive and negative voltages for pixels used within an LCD panel in order to prevent polarization and thus damage) and thanks to Mark Rejohn we already have a good online test to check your 3D monitor for LCD inversion artifacts, so check out the Moving Inversion Patterns Test.

With that said, if you have a 3D-capable monitor that is suffering from the same problem as described above (seeming like half horizontal resolution) when in stereo 3D mode and by the way this issue is also visible with moving objects when you are using the display in 120Hz 3D mode, though everything seems normal in 60Hz, you are welcome to report it in the comments below or the forum topic linked below. Please post the model of your 3D display as well as a production date (should be printed on the information sticker at the back of the display). You can easily check to see if your 3D monitor is affected by the same issue and how strong the problem is by going through the 3D Vision setup wizard and taking a closer look at the Hardware Test image with the geometric figures that is on the photo above, so you actually don’t need anything special to test, though the mentioned test above can also help if you are using a compatible browser.

To check out the topic describing the above resolution problem at the GeForce forums…

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The Indigomod is Now Called 3DMigoto and is Freely Available

August 19th, 2013 · No Comments · GeForce 3D Vision

3dmigoto-dx11-wrapper-logo

Indigomod, the DirectX 11 Wrapper for fixing 3D Vision shader issues that was mentioned here on the blog last month is now available for free and with a new name, apparently the project is now called 3DMigoto (Japanese for splendid, magnificent, beautiful). The guys behind the project have released both a beta version of the 3DMigoto wrapper itself as well as the wrapper packaged as a patch for fixing the shaders of the game Bioshock Infinite. Unfortunately there is not a lot of information or documentation to help you get started with the wrapper if you are not familiar on how to use it to remove or rewrite problematic shaders for stereoscopic 3D rendering, so that a DirectX 11 game that does not work well with 3D Vision’s stereoscopic 3D rendering method by default can look properly. So you will have to kind of learn on the go, especially considering that the wrapper also has some interesting extra features available besides shader modification. Just as a reminder, Helix has also released a version of his wrapper for DX11 along with patched shaders for the game Bioshock Infinite that you can download and try.

For more information and to download the 3DMigoto DirectX 11 wrapper…
And a kind of support topic about the 3DMigoto at the official Nvidia forums…

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Indigomod, a DirectX 11 Wrapper For Fixing 3D Vision Shader Issues

July 31st, 2013 · 9 Comments · GeForce 3D Vision

indigomod


There is a new interesting project currently in the works that is supposed to bring to life a DirectX 11 wrapper for fixing shader-related issues that may appear when rendering games that don’t work perfectly well with 3D Vision. This wrapper is called Indigomod and should be something similar to what the Helix mod already does for DX9 games that have issues when rendered in stereoscopic 3D mode with 3D Vision. There is nothing yet being released to the public aside some screenshots and videos from an earlier alpha version of wrapper fixing issues with the games Bioshock Infinite and Assasin’s Creed 3 and the guys (two passionate 3D gamers from Switzerland) that are working on the wrapper are looking for some support. So far things are looking good and while the wrapper will be included along with a patch specifically for made for fixing issues with Bioshock Infinite, the wrapper should be made available for the community to use it to fix issues in other DX11 games that do not render properly in stereo 3D mode with 3D Vision. The potential is there and since the stereoscopic 3D gaming community has done quite a lot with the Helix mod, this new wrapper can also help in making more non-3D-ready games work well in stereoscopic 3D mode with 3D Vision.

Update: The project is now dead even before finishing the indiegogo campaign and releasing anything…

“Just to let everybody know, somebody made a similar patch for BI and it is free. I don’t know where to get it and I don’t really care but I am sure you can find it through google. So tell everybody to not pay anymore money. I don’t want the campaign to succeed and you all of you get your money back and live happily ever after.
We stopped development and will not spend another minute on it.
Just to let you know.
Cheers”

Apparently that patch for the game Bioshock Infinite has been made by Helix, sadly however that the developers of the Indigomod have decided to stop their work and not release their wrapper to the community.

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