3D Vision Blog

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

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3D Vision Issue with SLI Setup with 3D DLP HDTV and Not Only…

January 9th, 2011 · 14 Comments · GeForce 3D Vision


Here is an interesting issue being reported by Jacob Pederson about using a SLI setup along with a 3D DLP HDTV and 3D Vision for stereoscopic 3D gaming. Jacob has dual GTX480 in SLI with a Mitsubishi WD-60735 3D HDTV and reports he is having the issue with a slight delay between the image displayed for the left and right eye with SLI enabled while when the SLI is disabled the issue is gone. And this issue has been present for a while now and is still there even with the latest drivers. You can easily spot it with Starcraft 2 as on the example video posted here and you can easily test on your system to confirm, moving the cursor in the menu should be visible as a single image and not leave trails as the cursor is rendered in 2D in the menu, however with SLI enabled you can see that there is a trail after without the glasses. When you put on the 3D glasses you will not see trail, but the cursor will feel weird as the trail is actually the image for the second eye that is being displayed with a slight delay. Other easy to spot places in StarCraft 2 are the green loading bars, the spaceship dropping your marines in the first campaign mission etc. These are easy to spot when not wearing the glasses, but when you wear you will feel that something is wrong with the picture and it will be uncomfortable, although you will not be able to spot the problem as when not wearing the glasses. The reason for that is that the difference between the image for the left and for the right eye is interpreted by the brain in order to create the depth feeling and if things are messed up like this, then the brain cannot properly build the depth for the scene…

Now, normally this issue is not present if you are using an HDMI 1.4 3D HDTV for stereoscopic 3D gaming along with 3DTV Play. That is if you are playing in 720p 50/60Hz mode, but apparently it is present in the 1080p 24Hz 3D mode or there is something that is creating similar effect but less apparent when using the 24Hz mode for gaming. That needs some more testing, but you can more easily spot the disturbing effect in StarCraft II and Bioshock 2 for example. When using 3D Vision normally with SLI there is no such issue present, that is when you have StarCraft 2 running in Fullscreen mode, but if you switch the game to Fullscreen (Windowed) and voila, you get the same strange delay with SLI that Jacob has shown on the video above, but you get it with a 3D Vision and a 3D LCD monitor. You are also welcome to try that and report your findings.

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What to Do With Your Non-Working or Broken 3D Vision Glasses

October 25th, 2010 · 6 Comments · GeForce 3D Vision


Lately I’ve been getting more questions about people having issues with the battery of their 3D Vision shutter glasses or having them accidentally broken, looking for advice on what to do. If your battery has just died, because it was left discharged for a while, then you might be able to “revive” it using this guide, and if that does not help, then you might be able to just replace the dead battery following the guide I’ve made here. If you’ve broken one of the lenses or have damaged something else, you might be out of luck as replacement parts might not be able anywhere or very hard to find, however in this case instead of just throwing the glasses and getting a new pair you might do something else. You can just sent me the broken 3D Vision glasses and I can use the spare parts for some projects, like for example the one for Modifying the 3D Vision Glasses to Show 2D Left or Right Frame Only. Just use the contact form on the website in order to get in touch with me…

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Do Not Hide the S3D Mode with 3D Vision While Playing in Normal 2D

September 11th, 2009 · No Comments · GeForce 3D Vision

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I just noticed some strange behavior when you have installed and enabled 3D Vision or 3D Vision Discover mode, but you use the option “Hide stereoscopic 3D effects when game starts” in the control panel, hit CTRL + T or just hide it from the IR transmitter (if you have the shutter glasses). When you hide the S3D mode you get little increase in performance, but the framerate you get is still lower than when you don’t have the 3D Vision drivers installed or the stereoscopic 3D mode not enabled. That is why I decided to do some testing with 3D Mark 2006 in different modes and compare the results just to see if I was right to believe there is something wrong. So here are the results from 3D Mark 2006 in the different modes and they do speak for themselves, I’ve used the latest 3D Vision drivers version 1.11 for this test and a Dell XPS 1730 laptop with dual Geforce 9800M GT video cards in SLI mode…


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Here is the normal result I got from 3DMark 2006 with stereoscopic 3D disabled.


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Here is the result I got from 3DMark 2006 with stereoscopic 3D enabled, but hidden.


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Here is the result I got from 3DMark 2006 with stereoscopic 3D enabled and active.

You can clearly see that when the stereoscopic 3D mode is active, but hidden it still gives you some serious drop in performance although you are seeing things in normal 2D and normally this should not happen. Andrew Fear confirmed that even when hidden by the Hide option, CTRL + T or by the button on the IR transmitter the driver still renders two frames, even if only one is being displayed on the screen and thus the performance drop even when playing in 2D mode. So when you want to play in 2D you better disable the 3D Vision driver by deselecting the “Enable stereoscopic 3D” from Nvidia Control Panel to get full performance in 2D and then switch it back on when you want to play in S3D again.

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