Hi, I have a rather perplexing problem perhaps someone will be able to help..

I will post specs in a min first my troubles.. In all my games with S3D Enabled I can get no more then 38 FPS. I just tested it in Flaming Cliffs 2 and Flight sim 2004/VRS F-18, also in Lord of the Rings ..38 FPS Steady, I also tested it in Rise of flight same FPS with S3D enabled. but when I turn the S3D OFF the Frames climb to over 60 some games get over 100FPS..

What would cause the games to be limited to 38FPS with S3D Enabled. I even have VSync and Frame limiters off in all games..

here are my specs:

1. Intel i5 2500K 3.30ghz
2. 12 gb RAM Mushkin DDR3
3. 2 PNY 470GTX in SLI. 275.33 drivers
4. Matrox TH2Go use this and not nVidia surround for a special reason..
5. Rocketfish 7.1 sound card..
6. 3 DLP Projectors no monitors
7. nVidia 3D Vision kit wireless
8. Asus P8Z68 Pro mobo..Intel chipset
9. Win 7 64 bit

I have all current updates and drivers..

If you need more info that I may have forgotten please let me know..this is wierd it seems others are getting normal FPS in their games and not being limited like this??

S3D is the 3D effect like in a 3D movie only for games..

About to put the finishing touches on an article about 3D flight simming, and saw your troubles. You have three bottle neck juncture points in your setup where the culprit could occur; the Nvidia surround drivers (or lack there of as you indicate), the Matrox or the DLP projectors. It is likely the the Direct X/Open GL calls are not being mathematically 'treated' for 3D since the Surround driver is off as you indicate. This means the standard algorithm being used by the DLP projectors (hopefully 240 hz active shutter in depth field array with matrix positioning) is confused by the Matrox signal resulting in the weird 38 fps limit. My first stop would be to check with the DLP manufacturer and make sure Matrox pass-thru is allowed.

S!-WD

Hey thnx for that Vey imformative answer. I have contacted Sharp and hopefully they will answer and not give me well your Projector is out of warranty BS ..

That is probally why tho Ill bet. Is that article going to be on SimHQ?? I would like to read it if possible when your done link please ;..

Well I had posted this on a few boards and someother poster had said because I run at 75hz that limits my FPS in S3D??

In fact they are running @75hz. looks like that might be why the FPSD are limited with S3D Enabled..