Crossfire's super AA mode enables AA with FP blending?

[Apple740]

It's unknown if next gen cards can do FSAA icw FP blending (according some most likely not), but what in the case with the new AA rendering mode Crossfire provides?
Is it theoretical possible that one card (offcourse a R520) does the blending and the other the FSAA?

 

[DemoCoder]

It doesn't work like this, but in theory HDR FSAA can be done via supersampling if your HW doesn't support it via MSAA.

You just render a bigger framebuffer and downsample (the downsample may have to be done via pixel shader or CPU tho), and with multiple cards you can do supersampling as well.

 

[Jawed]

What is the reason that NV40 can't do MSAA while FP blending is in operation?

Jawed

 

[Xmas]

It wasn't designed to do it.

 

[KimB]

Yeah, as Xmas said, it was a design decision. Basically, it takes more transistors.