[quote]Might be a hardware limitation, too. What's the pixel limit on G80 cards?
4th post in
this thread:
1) 7-series and below cards were 4096 max pixel width. 8-series and newer are 8192 max pixel width. It is a hardware limitation, not a DirectX version limitation. 8192 pixel width works in both DirectX 9 and 10. I've ran a setup in-game with 6400x1024 awhile back to confirm DirectX 9 works just fine past the 4096 supposed limit if using proper hardware.
Not sure what his source is. You remember where you got that info, Brad?
From practical experience and a tool in the directx sdk that shows hardware capability. The person that clued me in on this was the author of SoftTH. The original thread about breaking past 4096 was in the SoftTH forums somewhere. In particular I also questioned it before I did the 5 display softth+th2g test and he linked to a download of the utility. I sense then broke past the resolution I used in the 5 screen test with 4 24" running 7680x1200 using 2 DH2G and XP Horizontal-Span mode.
DX Caps Viewer also should show the hardware max limits if ran on a 5000-series card. That would be one good way to know the max specs.
I just found the original post over at SoftTH forum:
Re: GTR2 working at 4960x1600
« Reply #7 on: October 20, 2007, 09:53:17 pm » Reply with quote
from: BHawthorne on October 20, 2007, 09:45:56 pm
could you supply a link to reference that 8XXX series can in fact do 8192x8192?
You can check it yourself with the DirectX Caps Viewer: http://junk.kegetys.net/DXCapsViewer.zip (From DirectX SDK)
Go to DirectX Graphics Adapters/Your card/D3D Device Types/HAL and select the 'Caps' key. On the right it will say the 'MaxTextureWidth' and 'MaxTextureHeight' values, which should be 8192 for at least the 8800 series cards.
That is for SoftTH use, I'm not sure about limits with TH2Go and others.
http://www.kegetys.net/forum
On a separate note, this brings up a new set of options past the 6 EyeFinity display limit. You can most likely now use multiple DH2G or multiple TH2G + EyeFinity to push some serious sized display grids. (as long as you keep under that 8192x8192). 7680x3600 using a pretty crazy EyeFinity+6 DH2G Digital. If you have no budget restrictions how about EyeFinity+6 TH2G Digital in portrait mode pushing 6300x5040? There are some pretty shocking sized single card video wall options now if you chose to mix solutions together. When even humoring insane things like that it would make more sense just to use 1080p projectors instead to achieve screen size. :shock: