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New Faking it in 5K
Scenario: Radeon 5700XT, LG 4K HDR monitor.

Turns out that there's a feature in the AMD driver called "Virtual Super Resolution".

Mainly designed for games, the idea is that if you've got (say) a 1080p monitor, the driver renders scenes at a higher resolution, and - in hardware, and unbeknownst to the game - scales it down to the monitor resolution. This yields a higher-quality image.

Well, it also works on the desktop! So I have configured Windows to render the desktop at 5K resolution, and the GPU does a fine job of neatly and smoothly scaling it to fit my 4K monitor.

And it looks, as we scientists say, fooking great.

(desktop scaling is set to what would otherwise be a frankly silly 300%)
Expand Edited by pwhysall March 27, 2022, 04:53:07 AM EDT
New Can you post a screenshot of what it ... Oh
Seriously though, just a small piece at 4k and and the same piece at 5k. Are you able to see the difference?

Hmm, thinking it through, if the scaling is happening in hardware after the driver then the screenshot would be captured before that. So would the screenshot of the same region be larger?
--

Drew
New Re: Can you post a screenshot of what it ... Oh
4K first, then 5K:



New Yup, it's bigger
As I zoom in and out the 5k text looks sharper through a larger range of sizes.
--

Drew
New Re: Yup, it's bigger
Yep, and by more than you intuitively might think:

New Shouldn't "True 4K" be 4096 / 2304, to keep the 16*9 ratio (like all the others in the pic)?
3840 / 2160 = 16 / 9 = 4096 / 2304

I mean, if you only care about the absolute maximum measure, then 4096 * 32 is also "True 4K" -- in one dimension...

(Also, why the fuck is there an idiotic comma thousands separator in "4,096" when there isn't anywhere else? Annoying as Hell.)
--

   Christian R. Conrad
The Man Who Apparently Still Knows Fucking Everything


Mail: Same username as at the top left of this post, at iki.fi
New No idea
And the comma looks like the "True 4K" part is a post-hoc addition to the original diagram.
     Faking it in 5K - (pwhysall) - (6)
         Can you post a screenshot of what it ... Oh - (drook) - (5)
             Re: Can you post a screenshot of what it ... Oh - (pwhysall) - (4)
                 Yup, it's bigger - (drook) - (3)
                     Re: Yup, it's bigger - (pwhysall) - (2)
                         Shouldn't "True 4K" be 4096 / 2304, to keep the 16*9 ratio (like all the others in the pic)? - (CRConrad) - (1)
                             No idea - (pwhysall)

Perhaps if we built this large wooden badger...
72 ms