We recently managed to get our hands on a couple of pairs of these glasses and the associated hardware to use in our demonstrations at BVE. Having wanted to see them for quite some time, I was excited about seeing them in action.
Seeing an image in 3D on the screen requires each one of your eyes to see a slightly different image, there are several different ways to achieve this. Most systems use passive glasses; these take the form of either the coloured anaglyph glasses (which require no special display technology) or clear polarised glasses (requiring a matching polarised display).
Regardless of the technology used, the theory is the same: the glasses and display work together to ensure that your left eye only sees the left image and your right eye only sees the right image. Your brain does the rest, fusing these two separate images into a 3D picture.
The NVIDIA glasses work on the same theory but achieve it in a slightly different way. They are based on active technology and are powered by a small battery. The glasses work wirelessly, although they are charged over USB. Each lens of the glasses contains a liquid crystal display similar to those used in old calculators and this display changes the lens from black to clear at a rate of 60 HZ (60 times a second). While this is happening, the display flicks from the left image to the right image at a rate of 120 HZ. This is synced with the glasses via an infra red emitter to ensure that when the left image is being shown the right eye is blanked out and vice versa.
To make all of this work, you will need the following equipment:
- The NVIDIA 3D Vision starter kit, containing a pair of glasses and the infra red sync emitter.
- A compatible NVIDIA graphics card with a DIN connector for the sync emitter. A Quadro is needed for pro applications such as Maya. A Geforce is needed for Games.
- A display that is capable of displaying an image at 120HZ – the Samsung SyncMaster range is a good place to start.
- Software that is capable of using active stereo. In games, this is taken care of by the Nvidia driver. With regard to pro apps, any app that supports Quad Buffered OpenGL will work.
So, enough of the technical stuff – what are these glasses like to use? I was lucky enough to test them extensively, using them both for gaming and within Autodesk’s Maya. I was very impressed with them, I had expected to see some flickering of the picture as it switched from the left to right images but, with each eye being displayed at nearly 3 times the frame rate required for smooth viewing, the picture was extremely smooth. The glasses do make the screen appear a little dimmer but this can be fixed easily by turning up the brightness a little.
The experience of getting the glasses to work with my professional applications was a smooth one also, and just required enabling stereoscopic support in the NVIDIA control panel. It is even possible to display 3D output from two different programs at the same time.
In summary, these glasses are ideal if you want to preview and edit stereoscopic content in programs like Maya, or view stereoscopic movies. Imagine being able to show your 3D film or game in full colour progressive 3D, or showing off your product or building designs to clients in full 3D. With most major modelling packages including 3ds Max Design, Maya, CINEMA 4D and others at least able to create stereoscopic content even if you can’t directly edit in 3D, these glasses offer a great way to show your work in an immersive way. Content can be exported from this software and played back using Nvidias stereoscopic player and you can even use them for a bit of gaming after work!
If you’re not sure about the best way to create or view stereoscopic content, give us a call on 03332 409 306 or email 3D@Jigsaw24.com.