Keijo escribió: 

 SoftTH allows using three monitor "triplehead" with Direct3D 8 and 9 games without special hardware. You need three monitors attached to PCI Express video cards. Only one card does all the rendering work, so secondary card can be a low end card, only Direct3D support is required.

SoftTH works by rendering the whole scene on one display adapter, which then gets split into three parts to be displayed on each monitor. While it is technically possible to use it on a AGP/PCI card, only PCI Express has the required bandwidth to get good framerates.

Compatibility and performance

    While SoftTH can theoretically be compatible with any Direct3D 8 or Direct3D 9 game, some features used by games could not be yet suppoted or they can use special features which are incompatible with SoftTH. A common problem is also that the game cannot handle the aspect ratio, which results in a stretched image.

    Examples of SoftTH compatibility with some games tested:

    Working correctly:

        * Live for Speed S2
        * Operation Flashpoint
        * Lock On Modern Air Combat
        * Richard Burns Rally
          * Needs forceHorizontalFOV set to 1
        * Elder Scrolls 4 - Oblivion
        * rFactor
        * X3 Reunion
        * GTR 2
        * GT Legends
        * Test Drive Unlimited
          * Enable hooks and doScaleMouseCoordinates to fix cursor clipping
        * Armed Assault
        * Trackmania series
        * BMW M3 Challenge
        * Nascar Racing 2003
        * The Witcher
        * Company of Heroes
        * Call of Duty 2
        * Call of Duty 4
        * GTR Evolution
        * Team Fortress 2
        * Fallout 3

    Not working:

        * IL-2 Sturmovik
          - Doesn't work (OpenGL game, with dx8wrapper sets incorrect videomode)
        * Microsoft Flight Simulator X
          - Frame rendered only on left monitor, mouse not working correctly

    Tests above are run with the following system configuration:

        * Intel Core 2 Duo E6600 overclocked to 3,4GHz
        * Gigabyte X38-DQ6
        * 2GB of memory
        * GeForce 8800GTS 512MB PCI-e 2.0 (Rendering, middle monitor and right monitor)
        * GeForce 8400GS PCI-e (Left monitor)
        * Windows XP Pro SP2

Citar:

Eg you could have a nice 7900GS 256mb (okay its what ive got, i forsee a 8800 being ace for this), and a old 6600GT (me again :P). The 7900GS (8800 i want one if it works) would render a really high resolution wide screen image, then send the side chunks to the 6600GT and display the middle itself.

Citar:

plus it was annoying to play anyway, i this isn't softTH's fault but, the ultra wide resolution seems to just stretch it out and then cut it. leaving parts missing.

(thing 4:3 ratio cropped out to widescreen). You feel like ur smacked right up against the screen.

Im gunna have to ferret around for all my old games. Btw i having both monitors on the secondary card seems to make it abit choppy. (maybe it's my small amount of ram). I think i will see some increases if i switch the 6600GT to do one monitor, and the 7900gs to do 2.

Citar:

Im using a 7900GS to render the image (at a lower 3072x768 res) on a 16x slot. and a 6600GT in my other 16x slot to display the image.

When i find a decent game to play, ill swap over the 7900GS to display 2 screens (SoftTH has supported to virtualspan so they will run perfectly smooth) and then ill use the 6600GT as a display for the last.

Just need some decent games without funny calls (america's army craps out, though i've never had america's army be very supportive of anything other than 4:3 resolutions).

Im downloading the live for speed game demo, he got it working and for the life of me i lost Xtreme rally.

Love to hear some beasty rigs doing this. I'd say a 8800 with a crapload of memory should do this smoothly XD. Not sure in what detail but