10mb EDRAM ok for 1080i?

[Sethamin]

I see what you are saying but isn't it a requirment to have the Z-buffer with the pixel depth? Why was it excluded from the equation?

It's pretty difficult to do any 3D rendering without it, so de facto it probably is required. I did point out, though, that with additional space for the Z-buffer you probably don't have enough room in 10 MB for a 1920x1080 framebuffer. I suppose you could still get it in there if you used 16 bpp, but that's not a whole lot of precision. But the original question was "Is 10 MB enough for a 1080i framebuffer?", to which the answer is "Technically yes, but it depends".

As I already pointed out, though, it's all irrelevant since no one will ever use a framebuffer that big.

 

[Mintmaster]

I see what you are saying but isn't it a requirment to have the Z-buffer with the pixel depth? Why was it excluded from the equation?

That's why he said technically.

You could still fit a 1080p image (though I agree with those saying it'll be 720p all the time) in the backbuffer for all postpocessing. All your AA is resolved, and you don't need z or stencil for that stuff.

 

[Brimstone]

Why would they need a more explicit way of saying it scales to 1080i? Every single game on the system 'scales' to 1080i so it would be pointless.

No, seems to me these mean something, otherwise what would be the point of the labels at all?

I have to agree with your line of logic, but I'm totally confused how so many games are labled 1080i and some aren't. Project Gotham states 720p but thats not true, the resolution is lower than 1024 x 768. Neither Kameo, Perfect Dark, or Project Gothat is marked 1080i. Games like Madden DOA 4, and Gun however are marked 720p and 1080i


Microsoft and the 3rd parties have totaly convoluted the resoltuion situation it seems and journalists haven't even bothered to question it.

 

[Bohdy]

Once again, the boxes are a pile of shit, imo. This wouldn't be the first or even hundredth time that a VG box has had some misleading or unncecessary information. Some publishers just felt like making it extra clear that they support 1080i output (via scaling of course).

 

[LunchBox]

It's pretty difficult to do any 3D rendering without it, so de facto it probably is required. I did point out, though, that with additional space for the Z-buffer you probably don't have enough room in 10 MB for a 1920x1080 framebuffer. I suppose you could still get it in there if you used 16 bpp, but that's not a whole lot of precision. But the original question was "Is 10 MB enough for a 1080i framebuffer?", to which the answer is "Technically yes, but it depends".

As I already pointed out, though, it's all irrelevant since no one will ever use a framebuffer that big.

I see thanks for clarifying.

That's why he said technically.

You could still fit a 1080p image (though I agree with those saying it'll be 720p all the time) in the backbuffer for all postpocessing. All your AA is resolved, and you don't need z or stencil for that stuff.

Unfortunately i missed that particular disclaimer thanks for clarifying as well