Originally Posted by yunti
Blackshark I've been using 3x active displays for 3d vision surround for a while so I forgotten the various options for trying to get gaming working in dual display. The details in your thread in 3d mtbs forum seem slightly out of date now
I think you had a more up to date thread (was this in French?) that covered the various options but I can't find it
I'm not sure if dual projection is an option on nvidia cards unless using ddd drivers (do they have dual projector support)
What games have you managed to get working? Do all amd hd 3d games work easily?
I don't have a French equivalent to my dual-projector thread, I only have the thread down here in my signature and a copy of that thread at MTBS3D forums (where other people from MTBS also participate)
The French thread I often visit is a generic "any kind of 3D" thread at hardware.fr forums, but there aren't any extra information you won't find here.
I do need to rewrite my 3D projector thread, probably from scratch since so much stuff has changed since I originally wrote it :
-I now have better knowledge about polarisation
-I now have better knowledge about projectors in general
-I now have 2 different types of polarising filters and am about to get the Omega filters
-I have stumbled upon Eyefinity bugs, found their source and work-arounds
-The thread misses information about the iZ3D driver special configuration to get the side by side Eyefinity mode running
-I have just bought DDD Tridef drivers (yesterday) and they support side by side Eyefinity mode directly using both the traditional dual-outs mode and the side by side output.
I'll wait to get my hands on the Omega filters and test them properly before I start actually rewriting my thread.
Dual projectors with Nvidia cards ?
You won't be able to use the side by side mode since Nvidia mandates 3 displays to use the surround mode, but you'll still be able to use the traditional dual-outs mode (but you won't get frame lock).
Both iZ3D and DDD drivers have dual outs support working with both GPU brands.
A few games (Avatar and Crysis 2) also support dual-out stereo.
AMD HD3D supports Hdmi1.4 and DisplayPort3D displays only (and also one Dual-link DVI display). Dual outs are not supported.
I don't have Optoma 3DXL boxes so I cannot test HD3D.
Games I've played on the dual projector :
Just about any game working with iZ3D and DDD drivers work with the dual projector using the side by side dual-outs mode.
I encountered a few bugs with some games using the iZ3D driver because the side by side Eyefinity mode was beta feature and the driver is no longer updated (for example the mouse cursor is broken in 50% of games), so far for the games I have tested the DDD driver is working just as well as any other type of 3D display.
Most games with native 3D side by side mode can run the projectors but the aspect ratio will often be wrong. Although I did get some surprises :
->Avatar : the game config file has plenty of options to adjust aspect ratio but they don't work with 3D (no good)
->Crysis 2 : there is no aspect ratio setting (no good)
->Sonic Generations : When activating 3D, the game assumes you have a 16:9 display no matter what the internal render resolution is (lucky game ! render 3840x1080 and it works)
-> Trine 2 : You can tweak the settings file so that the game renders at higher resolution and resizes the side by side picture at the proper aspect ratio (not optimal but works).
If you go for dual-projectors, I still recommend to take BOTH drivers, because some games still work better with iZ3D than with DDD (like Dolphin the Gamecube/Wii emulator). And I noticed that FPS performance was significantly better with iZ3D on quite a few key games I play.