If I want to output to four monitors with a dual 8800GTX setup, can I expect normal behaviour and performance when spanning a window across all four displays at once?
Will MAX_TEXTURE_SIZE be increased to 8192, so FBOs will be usable at greater than 4096x4096?
The TripleHead2Go offers such poor resolution that I don’t think it’s a option for me.
If you create 2 windows each one spanning 2 displays connected to 1 GPU, I guess then it should be just fine, since this functionality is already supported with 7800 GTX
I believe it does not depend on texture size since they are two different hardware devices and you are talking about using them in SLI compatibility mode. Yeah I agree it would be helpfull to me also to have that functionality without having to deal with multiple rendering contexts and switching between them.
You’re taling about rendering to a huge viewport, even if it works, huge viewports can have unseen consequences for example guard band size, clipping and every SLI mode has a tradeoff, e.g. cache coherency.
Texture size is not tied to viewport size in any way unless unless you have some unstated requirement.