3D Vision Blog

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

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Blu-ray 3D Movie Playback With PC on a 3D HDTV Using HDMI 1.4

May 16th, 2012 · 3 Comments · Other S3D Tech

Following up on the story about the Roxio Cineplayer BD With 3D not being available anymore and the fact that there remain only three software Blu-ray 3D-capable players I’ve decided to check the current situation with them as well. I often get questions if somebody would be able to watch 3D movies on his old PC or laptop on a new 3D HDTV, something that seems easy at first, but things may get problematic depending on what is the video card in the system. The problem is that not all software Blu-ray 3D players support every popular 3D output mode and not output modes are available for all output formats.

Below you can find the requirements for playback of 3D videos on HDMI 1.4 3D HDTVs with the different solutions for playing back Blu-ray 3D movies, these are as per the website of the software developers requirements and specifications published on their websites… and they are not that clear.

Arcsoft TotalMedia Theatre 5
– NVIDIA GeForce 200/100 Series (Mobile/Desktop) or newer
– AMD (ATI) HD 5000 series or newer
– 2nd generation Intel Core processors with Intel HD Graphics

Corel WinDVD 11 Pro
– NVIDIA GeForce 500/400/300/200/100/9 series/8 series or newer
– AMD Radeon HD 6000 series or newer
– 2nd generation Intel Core processors with Intel HD Graphics

Cyberlink PowerDVD 12 Pro/Ultra
– NVIDIA GeForce GTX 460 or newer
– AMD Radeon HD 6800 series or newer
– 2nd generation Intel Core processors with Integrated Graphics

So if you have a system with these specifications as a minimum (the specific GPU depending on the manufacturer), in theory you should not have trouble playing Blu-ray 3D movies on a 3D-capable HDTV using HDMI 1.4 frame packaging. These software solutions of course also support Nvidia 3D Vision, 3D DLP Checkerboard and Row Interleaved (passive 3D), Anaglyph and maybe a few extra ones and with them things are generally easier to setup and they simply work. The real problem is making things work using HDMI 1.4 frame packaging and it might turn to be more problematic, in my experience, to make an integrated Intel GPU work, so as a good advice I’d recommend to download the trial version of the three software Blu-ray 3D players mentioned above and try them all on your PC before deciding which one you should buy. This can save you a lot of trouble in actually making thing work as you want them to and not having to rely only on some requirements listed by the software developer as practice tends to show that these not always turn out to be true or things simply don’t work as you expect them to. Also, another good advice is to always use the latest official video drivers and to have all the updates for the player software as these do help in resolving some issues, although in some rare occasions they also might break compatibility.

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More TV Makers Are Apparently Going for Passive 3D Technology

March 7th, 2012 · 18 Comments · Other S3D Tech

Lately there were a lot of news and speculations that more and more 3D HDTV manufacturers are going to be releasing passive 3D products, even top names like Sony and Panasonic that were solely focused on active 3D solutions are apparently going to be making passive 3D HDTVs. But is passive 3D technology better than active and what is the reason it is getting more and more interest from the companies making 3D HDTVs? Well, the major advantage is that products based on passive 3D technology are cheaper and easier to produce, and you can get dozens of passive 3D glasses at the price of a single pair of active 3D ones. Does that make passive 3D better – no, it does not, but for more price conscious customers these solutions are considered more attractive. Of course there is the fact that passive 3D glasses are easier to adjust and less people are having issues wearing them as opposed to active shutter glasses, but then again there are disadvantages in the passive 3D technology as well, one of the major ones being the reduced in two vertical resolution when in 2D mode.

LG Electronics is probably going to be the big winner of all this increase in interest in passive 3D technology as it is one of the largest manufacturers and suppliers supporting passive 3D technology, but the company is already looking beyond passive 3D – into autosterescopic 3D solutions. The other big Korean brand – Samsung is still one of the largest active 3D HDTV supporter and although they also had interest into passive 3D technology they have apparently abandoned what they were working on in terms of next generation of passive 3D technology. Up until a few months ago the company was in partnership with RealD in order to develop a passive 3D solution with true Full HD resolution in 3D mode as well, but apparently the work on that has been suspended until RealD finds another partner.

Now, setting aside the use of 3D HDTVs for watching 3D movies, if you consider the use of the larger screen TV sets for stereoscopic 3D gaming, the passive 3D technology is not at a significant disadvantage. The reason for that lies in the limitation of the HDMI 1.4(a) stereo specifications that currently pretty much limit you to 1080p 24Hz 3D mode and that is good for movies, but for games you would need to play in the 720p 50/60Hz 3D mode. On passive 3D HDTVs however you are able to bypass the HDMI 1.4 frame packaging if your middle-ware software for providing stereo 3D output supports Row Interleaved output and thus get 1080p 60Hz with half vertical resolution in stereo 3D mode. And there are actually quite a lot of people that prefer to get passive 3D for gaming due to this limitation of the HDMI 1.4 interface specifics than to go for an active solution and be limited in playing at 720p resolution. This of course is true if you are going for a 3D HDTV with the main purpose to use it for gaming in stereo 3D mode, but most people still by 3D-capable television sets for watching TV or Movies on them, not to play games in 3D. And while the same thing about the resolution of the passive 3D technology applies to 3D monitors, the active 3D monitors on the other hand support full 1080p resolution with wither 120Hz refresh rate in 2D mode or with up to 60Hz in 3D mode per eye (if the monitor is equipped with DL-DVI or DisplayPort interface). So for stereoscopic 3D gamers active 3D monitors are still the proffered solution and more and more traditional gamers are also switching to these 3D-capable active monitors in order to be able to use them to play games in 2D mode with the 120Hz refresh rate.

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LG Passive 3D HDTV Colorbug Investigation and Fix in Stereo 3D Mode

February 24th, 2012 · 1 Comment · Other S3D Tech

Here is something interesting and useful for the owners of LG Cinema 3D HDTVs that are using them in stereo 3D mode together with their computers, a solution to getting rid of the annoying colorbug that the passive 3D TV sets from LG suffer from. You can thank our reader Shii who took the time to investigate the issue and find a solution for getting rid of it and especially for the detailed information and instructions, together with the modified INF driver that you can use.

Colorbug exists when PC sends to LG TV HDMI signal. Disabling extension block in EDID eliminates colorbug and PC sends DVI signal without extra HDMI information. The bad guy here – LG TV, not Nvidia. LG TV incorrectly receives HDMI signal in all input modes even in PC mode. When PC input enabled LG TV must disable all image enhancers but it doesn’t do this. The result – slightly blurred image. When we got one line of pixels, the lines over and under glows too and this causes colorbug. Glasses filters source line but don’t filter over and under lines!

Have in mind that the side effect from using this solution for getting rid of the colorbug issue on LG Cinema 3D TVs is that you will loose the audio over HDMI, so you will need to have it routed in another way to the speakers. So do not wonder where has your audio gone after installing the provided EDID override driver. And as a side effect using this solution will give you the ability to use Nvidia’s interleaved 3D Vision mode instead of the HDMI 1.4 frame packaged output with your LG 3D HDTV. The good thing about that is that instead of being limited to 1080p 24Hz 3D mode as you are when using the frame packaged method for 3D content transmission you would be able to play in 1080p 60Hz 3D mode when using the row interleaved mode. So if you are gaming on your 3D-capable passive LG 3D HDTV, then you will find this guide very useful…

You can read the detailed instructions for fixing the LG 3D colorbug here in the forum…

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