Hi, All I have had a sleepless night and spen most the night reading guides and trying to get the best settings for my Setup..

some of you might know I have 3 Uncertified DLP Projectors working with nVidias 3D Vision and the help of the Matrox TH2Go Unit.. That tricks nvidia to thinking I have a CRT Monitor..

Now the One problem I am facing I have been reading about the Screen size and How nVidia driver s Automatically select a size for you..

WEll Here lies my Problem.. I have 3 45" 4:3 Screens. for the Hack to work do I measure the combined total of all 3 screens diagonally??

I would imagine the setting is at around 22" for a CRT.. And that would totally screw up my depth yes or no?? I need help here maybe the facty that I am sleep deprived and am reading to fast for the tired brain to comprehend this all..

I am unsure what to do here with my Oddball Projector setup.

I am also looking to set the 3D just right but after all this time reading I feel more lost?? I thought I had a good handle on this but Feel my system is running less then optimal but I am unsure How to setup Properly..

Currently I am single screening it and got it setup pretty good but I am now afraid I have the Convergence settings all wrong and makiny eyestrain..

Can someone take me along like I am a complete noob and mae a little guide on How to setup my System optimally with the 3-45" screens?? here are some pics:



By the_nephilim at 2011-09-17





By the_nephilim at 2011-09-17


PLEASE I am in dire need and am trying to get this figured out completely.. THNX

Yes I think you have to adjust the screen size for your whole display area. I think using a depth size smaller than your actual screen size will give more depth though. Look at how they did it on 3d vision blog. http://3dvision-blog.com/tag/depth-hack/
If your getting eye strain just drop your depth to near 1 or 2 depending on your space between your eyes. Then adjust the convergence so that when you look at the edges of your screen, that you don't see double blur or window violations.




Getting More in-Game Depth Available for Use With 3D Vision

May 26th, 2010 · 10 Comments · GeForce 3D Vision







Some of you that have used the older Nvidia stereo 3D drivers may remember that they had an option in the Control Panel to set your screen size, but in the new 3D Vision drivers there is no such option available. Instead the size of the monitor is being automatically chosen when your 3D-capable LCD monitor is detected by the drivers and recorded in the registry, which may not seem so bad for most people, but can bring some inconvenience to some users that do like to have a lot of depth when playing games in stereo 3D mode. The reason for that is the fact that your depth percentage slider in the 3D Vision driver is directly connected to your screen size, so even when you go to 100% depth you may still find it not enough. You can however increase the level of depth you get using a simple method, if you need more depth that is, by manually changing the setting in the registry that reflects the size of your display size…







You should know however that the 3D Vision driver resets the value in the registry called MonitorSize to its default settings and with some of the older drivers the method described below did not work. The good news is that with the latest 3D Vision Driver CD 1.27 and the drivers version 257.15 this workaround is working again, so if you need more depth you can easily get it. But when you run a game with 3D Vision the MonitorSize value gets reset, so the actual workaround is modifying it after it has been reset. Depending on the windows type you are using – 2-bit or 64-bit version the place where you can find the required value in the registry you need to modify is different.

For 32-bit Windows:
[HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\Stereo3D]

For 64-bit Windows:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\NVIDIA Corporation\Global\Stereo3D]

The value MonitorSize in the image above represents the normal number for a 22-inch Samsung 2233RZ monitor. You can see that the value in HEX is 2C or in decimal numbers 44, which is double the size of the monitor and there is very clear reason for that. Each number from the value 44 represents half an inch size, so that is why 44 actually represents a 22-inch monitor size with the idea that when you can change the size in half of inch you get better control than with 1 inch. So what you need to do in order to increase the maximum depth level is to actually decrease the size of the monitor, if you for example set it to 22 decimal (16 HEX) value this will mean that you have 11-inch display and you’ll get double the depth (100% more). So after this modification when you movie the slider for depth with one percent it will actually increase twice the depth than previously, but the scale for depth percentage will still remain up to 100% (it will not increase to 200%). The same can be applied in reverse in order for you to have lower depth level and finer control by increasing the monitor size, with 88 decimal number or 58 HEX you’ll get half the depth level than normally, but still with a scale of up to 100%.

There is a catch however as I already mentioned and that is the fact that every time you run a game with 3D Vision the MonitorSize value gets reset to its default value (44 for a 22-inch monitor for example). So what you need to do is modify that value in the registry each time you run a game, but after the game has started. You can for example ALT + TAB and run Regedit to change the value in the registry each time you need it after you run a game. You can also create a REG file that will automatically import the new setting for the MonitorSize value when you double click on it, again after you’ve hit ALT + TAB, here is an example of the code in such .REG file that you can save (name it for example monitorsize.reg) and use, just don’t forget to modify the value of MonitorSize in HEX, not decimal (the example value is with a 11-inch monitor or with 100% more depth):

For 32-bit Windows:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\Stereo3D]
"MonitorSize"=dword:00000016


For 64-bit Windows:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\NVIDIA Corporation\Global\Stereo3D]
"MonitorSize"=dword:00000016


And since you probably will not need to have more depth in each and every game, you may want to have higher depth levels in some games and lower in others, so you can get some automation for each game with the help of Batch files. The following example batch files will run the game Tomb Raider Underworld, wait for 3 seconds and then modify the value of MonitorSize in the registry to 11-inch display instead of 22-inch, effectively doubling the available depth levels in the game. You can save the example files (separate versions for 32-bit and 64-bit OS) with the name of the game to easily identify them like TRU.bat for for Tomb Raider Underworld, just don’t forget to edit the second line of the Batch file to point to the path and the executable file of the game you want to run. Note that here the value you set for MonitorSize (22 in the example) is in decimal not HEX numbers, so it is 22 instead of 16 (16 HEX equals the decimal number 22).

For 32-bit Windows:
@Echo Off
@START /D "C:\Games\TRU\" tru.exe
@TIMEOUT 3
@REG ADD "HKLM\Software\NVIDIA Corporation\Global\Stereo3D" /v MonitorSize /t REG_DWORD /d 22 /f

For 64-bit Windows:
@Echo Off
@START /D "C:\Games\TRU\" tru.exe
@TIMEOUT 3
@REG ADD "HKLM\Software\Wow6432Node\NVIDIA Corporation\Global\Stereo3D" /v MonitorSize /t REG_DWORD /d 22 /f

OK after Getting some sleep earlier This makes more sence.. I believe I am already getting more Depth as it is smaller then my Actual size. I dont see the point in this if you would actually want to set it smaller anyhow then your Actual size for more depth..

OK I just need a definite answer on how to adjust the Stereo Seperation and convergence optimally.. I like the in Depth look.. I have read multiple guides and they all seem a little different .. I just need to find an approved method that is Official or something..

I think I got it right now but just want to be sure..I cant wait till January when I get some more Cash I will be getting some nerw bulbs.. to get back toi triple screen S3D goodness.. WOW is just NOT the same in a single screen..

I don't think you'll find an "official" way to configure separation and convergence because it essentialy depends on personal taste. Some people prefer having most of the scene close to the surface of the display with some pop-out while others prefer to have everything more deeply behind the surface. You can see that from the numerous S3D screenshots that have been posted on this forum, people rarely use the same settings.

The depth effect also depends on the distance you're watching your screen from, so they are not really transposable from one setup to another one. The best solution would probably be to try several combination of settings until you find something both enjoyable and comfortable.

Theoretically you could have something that correspond to the same situation than in reality, by adjusting separation to the max so that objects at an infinite or very far distance (like the sun or the moon) would have the same separation than your eyes. But doing so will probably make the image unwatchable from a close viewing distance. And it will lessen the depth effect in games like flight simulators since after around 60m everything looks more or less flat.

OK I dont think you understood what I was asking or I didnt explain myself good enough..

I have been reading all sorts of stuff on the internet and was concerned about setting two far out as to effect my eyes as in eyestrain..

I asm just looking for Some General Rules of Thumb.. Like I said I have a Different setup 3 Projectors on 3 - 45" screens most of the Guides I have seen are for a Single Monitor in the 20" range..

I thought maybe there was a starting point where there are rules I can follow according to MY system and adjust accordingly..

I sit 3feet from the screen and it fills my periphreal vision very well. I have the End Screens angled.
Like I said I believe I have it setup correct was just looking to do some fine tuning withoutr ruining my eyes..


OK I found this:


http://www.mtbs3d.com/index.php?option= ... &Itemid=98

Put depth at around 25%. Now increase the convergence until an object close to the screen slightly passes through the screen plane (meaning starts to pop out of the screen). In a FPS game this would be the gun. You can do this with the glasses off if its more comfortable. Now put the glasses back on. If it looks good, then great. At this point you can try increasing depth to around 50%. See if this is comfortable. You may want to give more or less (or also adjust convergence) at this point. I rarely go over 75% on depth. You can even get a nice comfortable 3D effect with depth at around 20% but with a decent amount of convergence. Obviously you will have to tweak it depending on your setup, but that it what works for me on a 23" monitor.

As I've said you won't find general rules that work for everyone, the S-3D settings guide you pointed to also says in page 4 that adjusting settings is up to personal taste. On this same page it presents 3 types of settings with 2 being similar to the ones I talked about (depth only and mixed depth and pop-out). In the case of a flight simulator the depth only setting seems to make more sense though.

If you're looking for rules to avoid eyestrain you can have a look at the several research papers published by Martin Banks about the vergence-accommodation conflict (especially this one), but unfortunately you won't find any clear answer about what are the best settings to avoid eye-strain on a particular setup.

This schema taken from the research paper illustrates the zone of comfort for several viewing distance, but since the scale is not linear in this schema it's quite hard to extract exact values for your particular viewing distance. You can at least see that the range of disparities should be kept quite small for a desktop viewing distance (top-right corner).



Also since in this study no two subjects are experiencing the same amount of eye-strain in the same viewing conditions, you should really test various combination of parameters until you find something both enjoyable and comfortable for your particular case. Using the technique cyber talked about looks like a sensible approach too.