3D Vision Blog

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

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The New Fastest Single GPU Video card – Nvidia GeForce GTX 780 Ti

November 8th, 2013 · 4 Comments · General 3D News

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Nvidia has introduced their new flagship GPU, namely the Nvidia GeForce GTX 780 Ti that has yet again taken the throne of the fastest single GPU video card taking the place of the GTX TITAN and according to the reviews out there beating the competition in the form of the AMD Radeon R9 290X. The video cards based on the GeForce GTX 780 Ti may not be the best in terms of price performance ratio, but they are the fastest ones and if you are looking for a solution that you might not want to upgrade for a while, then they are a great choice, especially if you are going to be using them to play in stereoscopic 3D mode using 3D Vision or playing games in 120Hz/144Hz 2D mode. Again based on the first reviews of the GTX 780 Ti that were released the card is pretty capable for playing in 2560×1600 or 2560×1440 resolution, but 4K for a single card is still a bit too much. And gaming in 4K is something that although may be very cool is still a way too expensive in terms of displays and hardware required to support it properly, so you better wait and don’t yet go investing in multiple GTX 780 Tis yet.


Nvidia GeForce GTX 780 Ti Specifications:

Graphics Card: GeForce GTX 780 Ti 3GB
Graphics Processing Clusters: 5
Streaming Multiprocessors: 15 +3
CUDA Cores: 2880 +576
Texture Units: 240 +48
ROP Units: 48
Graphics Clock: 863 MHz -12
GPU Boost Clock: 928 MHz -130
Memory Clock (Data rate): 7000 MHz +1000
L2 Cache Size: 1534KB
Total Video Memory: 3072MB GDDR5
Memory Interface: 384-bit
Total Memory Bandwidth: 336 GB/s +48
Texture Filtering Rate (Bilinear): 210 GigaTexels/sec +44.3
Fabrication Process: 28 nm
Transistor Count: 7.1 Billion
Connectors: Dual-Link DVI-I, Dual-Link DVI-D, HDMI 1.4 High Speed, DisplayPort 1.2
Form Factor: Dual Slot
Power Connectors: 1x 8-pin, 1x 6-pin
Thermal Design Power (TDP): 250 Watts
Thermal Threshold: 95 degrees C
Bus Interface: PCI Express 3.0

* The superscript numbers in green and red show the change as compared to the specs of GTX 780.

The new GeForce GTX 780 Ti is essentially a maxed out GK110 GPU with all the CUDA cores present and all 15 SMX blocks active. Comparing the GT 780 Ti spec wise to the GTX 780 you can see that the clocks of the GPU are a bit lower, but the significantly increased number of CUDA cores compensates well for that and the memory is clocked higher offering a good increase in the bandwidth. So essentially with the GeForce GTX 780 Ti we are getting a faster than GTX TITAN video card that is more affordable than the TITAN, though if you already got a GTX TITAN earlier this year there is no much need to upgrade. The recommended end user price of the GeForce GTX 780 Ti is $699 USD and it also comes with three free games as a part of Nvidia’s PIRATES, HEROES & SPIES promo bundle, the games in this bundle are Assassin’s Creed IV: Black Flag, Batman Arkham Origins and Splinter Cell Black List.

Up until a few days ago I was considering to finally upgrade my stereoscopic 3D gaming rig using 3D Vision with a GTX 780, but now that the GeForce GTX 780 Ti is out, I’ll be getting a 780 Ti card. A single card should be good enough to handle gaming in stereo 3D mode at 1920×1080 resolution and I’ll probably be sharing some benchmark results after I get to see what is the performance you will get from the GTX 780 Ti in stereo 3D mode…

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Get 50% Off TriDef 3D If You Have an AMD HD3D-capable Video Card

November 5th, 2013 · 1 Comment · General 3D News

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If you have an AMD-based video card that has support for the AMD HD3D Technology (Radeon HD 5000 series or newer) you can take advantage of the promotion that DDD is currently running for their TriDef 3D software and get a license for half the normal retail price. With the help of the TriDef 3D software you can convert games into stereoscopic 3D format for playing on compatible 3D-capable monitors or 3D HDTV sets, as well as play 3D photos and 3D videos on your 3D-cabled PC. Have in mind that this discount will be valid until the end of this month (November 30th), so you should take advantage of that offer now and not wait for the last moment and possible miss your chance. What you should be well aware of however is that by getting the discounted license for the TriDef 3D for AMD HD3D software you will be able to run it only on compatible AMD graphics, so if you replace your graphics card with an Nvidia-based one at a later time you will not be able to use the software on it! The TriDef 3D software has a 14-day trial version available that you may download and try before you decide if you should buy a license for the software.

- For more information about the TriDef 3D for AMD HD3D promotion…

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castAR is a New AR and VR System Project on Kickstarter

October 31st, 2013 · No Comments · 3D / AR / VR / HMD

castAR is a projected augmented reality system that displays holographic-like 3D projections right in front of you inspired by Star Wars’ holographic depictions. It is another alternative to Head Mounted Displays that allows you to bring you augmented reality and virtual reality experience in a compact and lightweight glasses-type of product. What differs the castAR system from HMD devices like the Oculus Rift is that instead of an LCD display it relies on micro projectors that project the light on retro-reflective material. You also get head tracking and additional controllers such as a “magic wand” and objects using RFID tags that allow you to interact with real objects in augmented reality. And another great thing is that you get stereoscopic 3D support as a part of the experience that is possible thanks to the use of dual micro projectors. Think for example about a board game going digital and multiplayer over the Internet, this could be a great use for this system and probably that was the general idea behind the design of that concept. As we all know the problem with projects such as castAR is that they are so different from the traditional display devices that you need to have games specially designed to be played with them and that takes some time, so even with the project already funded and reaching its original goal the announced shipping date for the hardware is September 2014 and even by then the software for castAR probably is not going to be that much. Have in mind that castAR is primary designed around the concept of Augmented Reality and not Virtual Reality, so it will probably be much better for AR than VR experience.

To tell you the truth I was not as excited about castAR as when Oculus Rift Kickstarter project launched, at least not before the announcement that castAR will be supported by the Vireio Perception open source driver. This means that when the first public build of version 2.0 gets released on November 28th it should already have support for the castAR system, thus allowing you to play existing games in a virtual reality environment with head tracking and stereoscopic 3D functionality when the castAR system comes out next year. This is great news and I’m also expecting to see how the the Vireio Perception 2.0 will perform with Oculus Rift as it is still the only free and open source solution for “converting” games that were not designed for the Rift to be played on the HMD. The other two available solutions are commercial products – DDD TriDef (only in beta) and vorpX, though I will not be surprised to see TriDef also getting support for castAR in the near future.


castAR’s projected augmented reality system is comprised of two main components: a pair of glasses and a surface. The frames of the glasses contain two micro-projectors—one for each eye. Each projector casts a perspective view of a stereoscopic 3D image onto the surface. Your eyes focus on this projected image at a very natural and comfortable viewing distance. A tiny camera in-between the projectors scans for infrared identification markers placed on the surface. The camera uses these markers to precisely track your head position and orientation in the physical world, enabling the software to accurately adjust how the holographic scene should appear to you. The glasses get their video signal through an HDMI connection. The camera is connected via a USB port on the PC.

The surface is made of retro-reflective sheeting material, similar to the kind used in traffic signs and high-visibility safety clothing. The primary benefit to using this material is that it bounces the majority of light from our projectors directly back toward the glasses with very little scattering. This enables the simultaneous use of a single surface by multiple people while keeping each viewer’s view private from the others.

Since your vision is focused at a natural viewing distance, you shouldn’t experience eye strain. Projected augmented reality allows you to simultaneously see both virtual and real-world surroundings, so you are spared other sorts of discomfort as well. For example, an important aspect of your body’s understanding of the physical world is tied to your inner ear—the part of your body responsible for balance and motion sensing. When you are able to see your physical world, your eyesight and inner ear will stay in sync with your movements. Most people do not feel nausea or motion sickness when using castAR and projected augmented reality.

- For more information about the castAR project on Kickstarter…

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