3D Vision Blog

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

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AMD FreeSync is Now Official and Should Be Open For Everyone

March 19th, 2015 · 5 Comments · General 3D News


AMD FreeSync technology is apparently now official, bringing an alternative to Nvidia’s G-Sync. Both technologies are implementations around the industry standard DsiplayPort specifications in their revision 1.2a and more specifically around the DisplayPort Adaptive-Sync. AMD’s implementation however does not rely on expensive hardware DRM module like Nvidia (the G-Sync module itself), so it should not increase the price of the display additionally. In theory AMD FreeSync should work on all DisplayPort 1.2a-equipped monitors if you have a compatible AMD GPU, though the company is not very clear on that subject. The list of compatible AMD GPUs with gaming support for FreeSync include AMD Radeon R9 295X2, 290X, R9 290, R9 285, R7 260X and R7 260 (the status of 7800 and 7900 series or 280X is not very clear).


There is still no official WHQL driver available, but apparently AMD FreeSync required Radeon 15.2 beta drivers or newer to be supported. AMD has released a list of 11 gaming-oriented monitors from multiple partners including Acer, BenQ, LG Electronics, Niexeus, Samsung and Viewsonic that come in different sizes and with different features. What AMD is still lacking compared to Nvidia is support for stereoscopic 3D gaming along with FreeSync – there are multiple Nvidia G-Sync compatible models that also support stereoscopic 3D gaming. Should that matter however when Nvidia is apparently abandoning stereoscopic 3D support for some time already and the company is doing this for a second time since it was founded (history repeating itself). We are already eager to see what does AMD have in store for us with their FreeSync implementation…

Update: After trying out Acer ХВ280НК 4K G-sync monitor with AMD Radeon R9 280X and 290X I can say that I’m not very happy with both AMD and Nvidia. The G-Sync monitor works just fine on Nvidia hardware with G-sync and without. On Radeon 280X (not officially compatible with FreeSync according to AMD!) the monitor works just fine, but no option to enable FreeSync in the drivers as expected. Connecting the monitor to a AMD FreeSync compatible GPU, namely Radeon R9 290X the drivers still show no option to enable FreeSync in the drivers, nor the display is detected as capable of supporting it. The problem with Sapphire R9 290X 8GB and the Acer ХВ280НК monitor is that the display is not working properly in this combination, there is picture, but the monitor constantly goes blank for a bit at irregular intervals, just as if it is loosing the input signal and getting back signal – happens in both 2D and 3D mode. The tests were performed using the AMD Catalyst 15.3.1 Beta drivers supplied by AMD for trying out the new FreeSync feature.

Update 2: It seems that if you want to be able to use AMD’s FreeSync technology you would still have to buy a new display that features DisplayPort 1.2a interface and also buy a new graphics card if you are using R9 280X, one of the most popular GPUs from AMD. It will not work on your older hardware as most likely you don’t have DP 1.2a capable monitor anyway, unless you bought a really recently announced model, so you might want to wait for one of the new gaming models that are officially compatible with FreeSync as listed by AMD. Also since Nvidia’s G-Sync technology uses DisplayPort 1.2 interface the officially licensed G-Sync monitors will apparently not work with FreeSync as well.

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More About the Portable 3D Notebooks Availability on the Market

May 10th, 2012 · 2 Comments · General 3D News

You may have noticed that I was a bit absent from the blog the last 10 days and the reason for that was a critical hardware failiure of my work laptop, so I’ve had to get a new one install it and recover all the data and backups to it… and it took me some time, but now everything is back to normal. But more importantly, I was again looking for some portable laptops with 3D-capabilities, something that I’ve talked about not too long ago here on the blog. This time my idea was to actually get a portable 12 or 13 inch 3D-capable laptop with a 3D display, not a gaming solution, but something that can be used to preview 3D photos and 3D videos and of course to do some testing of different stereo 3D software on it as well. Unfortunately I still could not find a good solution that fits my requirements, probably they are too specific, or I’m in need of something that is still considered a way too niche product for anyone to make it. So in the end I’ve ended up getting a good 2D laptop, namely the HP EliteBook 2560p – a great portable, yet very powerful and feature rich system that pretty much offers all that I need, minus the stereoscopic 3D support. So again a pair of anaglyph 3D glasses gets packed in my laptop back for use whenever I need to preview something in stereo 3D or test something and I don’t have my stereoscopic 3D-capable desktop test systems available. Maybe I’ll have more luck the next time I’m replacing my laptop… hopefully by then there will be more 3D-capable portable solutions actually available on the market. For now most 3D-capable laptops are intended for gaming or multimedia use and go with a larger display size and powerful discrete graphics, instead of being designed for stereoscopic 3D use on the go… and we actually need a bit more diversity.

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Sony’s 3D Head Mounted Display HMZ-T1 Will Be Available Soon

August 31st, 2011 · 13 Comments · 3D / AR / VR / HMD

Do you remember the HMD device that Sony was demoing back at the beginning of the year during CES 2011, back then it was just a prototype and the company wasn’t sure if it will be making appearance as an actual products? Well the good news is is soon going to be released at least on the Japanese market, but maybe soon on others as well. The device is slightly redesigned compared to the prototype, but not that much different and with the same specifications, of course also supporting stereoscopic 3D. Sony is supported to release the HMZ Personal 3D Viewer as they call the device on November 11th in Japan with a retail price of 59,800 Japanese Yen which roughly translates to about $780 USD, not a bad price for such a device actually.

The interesting thing about this 3D HMD device from Sony is that it uses two 0.7-inch (18 mm diagonal) high definition OLED panels with native resolution of 1280×720 pixels, a similar concept like the Emagin Z-800 3D Visor is some of you remember it, but with more up to date hardware. Thanks to the use of OLED panels the image quality should be very good, faster response, with brighter colors and darker black thanks to the fact that OLED displays do not have and need additional backlight. The presence of 2 independent panels, one for each eye means that you will be getting crosstalk-free stereoscopic 3D experience in 720p HD resolution. The optical lenses in front of the OLED displays should be able to provide you with a FOV of 45 degrees, still not wide enough to cover your full peripheral vision like what you’d expect from a HDM (the eMagin solution offers about 40 degrees FOV). According to Sony the experience of wearing the HMZ-T1 is like watching video in a movie theater-like 750-inch virtual screen virtual from a viewing distance of approximately 20 meters. And together with the 3D video support, the 3D Head Mounted Display should also come with a virtual 5.1-channel audio built-in the headphones in order to provide you with a more realistic surround sound as well.

Now, regarding what connectivity options will the HMZ-T1 3D Personal Viewer offer, it is not very clear, but it will have HDMI interface for sure. This interface should be 1.4a-capable in order to easily accommodate stereoscopic 3D support for devices such as Sony’s PlayStation 3 console or a Blu-ray 3D player, and we may even have it supported on PC as well. The connectivity is done through the supplied processor unit that is connected through a cable to the 3D viewer device as you can see on the photo above. And aside from the standard input HDMI connector there should be one more in order to enable pass-through mode, so what what you see on the HMD device will also be displayed on a 3D HDTV for example. Now the 3D Head Mounted Display HMZ-T1 from Sony is definitely something worth waiting for, especially if you were interested in the HMD-type of devices for a while now and have tried multiple solutions so far, and hopefully we won’t have to wait for too long…

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