5 ms·

I'm guessing to reap benefits of https://en.m.wikipedia.org/wiki/Supersampling https://en.m.wikipedia.org/wiki/Supersampling

rzzzt 5y ago
On Windows, I use AMD's VSR (Virtual Super Resolution) to set 5k screen resolution on a physical 4k display, letting me set the UI scale factor to 200% and have reasonable font sizes with clean icons (125% and 150% looks fuzzy). Under Linux, it is an xrandr spell that achieves the same thing.
- vladvasiliu 5y ago
  How does this work? Don't you have to scale the virtual 5k resolution down to 4k? Wouldn't that also generate fuzziness? If a stroke is 1px wide at 100%, 2px at 200% / 5k, how does that stay sharp when you scale it down to 80%? Or is the idea that whatever algorithm AMD uses is better than the one Windows uses?
  - xuki 5y ago
    Say you have a 28" 4K display but you want to run 2560x1440 resolution to get you desired UI size. You can either run 2560x1440 scaled up to 4K, or 5120x2880 scaled down to 4K. The latter will look better.
    - kuschku 5y ago
      Or you run at 4K and let applications scale – which sadly not all support properly.
      - vladvasiliu 5y ago
        This is what I usually do. I run 4k at "100%", but then I increase font size as needed. I usually don't care about the icons, widgets, etc since I rarely interact with them, so to me, it's actually a good thing they're small. This way everything is plenty sharp, and I also get more screen real estate. The reason I use a 4k screen is to have sharp text, so I try to avoid scaling.
        kuschku 5y ago
        That’s why – despite being a free software advocate – I currently run Windows for all critical software, as on Windows I can scale content without re-scaling windows. (Qt and Android support it as well, but Gnome and macOS don’t).
        vladvasiliu 5y ago
        I'm not using Gnome, but scaling the text works fine for GTK apps on I3.
        kuschku 5y ago
        Yes, but Elementary, Android, Windows and Qt can scale icons and all elements together with the text to any arbitrary scale, pixel-perfect, without any post-processing. GTK can only scale text, or scale the whole window to 2x, 3x, etc and then scale it back down in post-processing.
  - rzzzt 5y ago
    Downscaling doesn't bother me as much for some reason. Icons scaled to 125% or 150% from their 1x size look more blurry than the 2x version of the same icon scaled down. It also looks better to me if the system uses integer scaling to blow up the 1x icon to 200% size first, then scale down from there.

rzzzt 5y ago

On Windows, I use AMD's VSR (Virtual Super Resolution) to set 5k screen resolution on a physical 4k display, letting me set the UI scale factor to 200% and have reasonable font sizes with clean icons (125% and 150% looks fuzzy). Under Linux, it is an xrandr spell that achieves the same thing.

vladvasiliu 5y ago
How does this work? Don't you have to scale the virtual 5k resolution down to 4k? Wouldn't that also generate fuzziness? If a stroke is 1px wide at 100%, 2px at 200% / 5k, how does that stay sharp when you scale it down to 80%? Or is the idea that whatever algorithm AMD uses is better than the one Windows uses?
- xuki 5y ago
  Say you have a 28" 4K display but you want to run 2560x1440 resolution to get you desired UI size. You can either run 2560x1440 scaled up to 4K, or 5120x2880 scaled down to 4K. The latter will look better.
  - kuschku 5y ago
    Or you run at 4K and let applications scale – which sadly not all support properly.
    - vladvasiliu 5y ago
      This is what I usually do. I run 4k at "100%", but then I increase font size as needed. I usually don't care about the icons, widgets, etc since I rarely interact with them, so to me, it's actually a good thing they're small. This way everything is plenty sharp, and I also get more screen real estate. The reason I use a 4k screen is to have sharp text, so I try to avoid scaling.
      - kuschku 5y ago
        That’s why – despite being a free software advocate – I currently run Windows for all critical software, as on Windows I can scale content without re-scaling windows. (Qt and Android support it as well, but Gnome and macOS don’t).
        vladvasiliu 5y ago
        I'm not using Gnome, but scaling the text works fine for GTK apps on I3.
        kuschku 5y ago
        Yes, but Elementary, Android, Windows and Qt can scale icons and all elements together with the text to any arbitrary scale, pixel-perfect, without any post-processing. GTK can only scale text, or scale the whole window to 2x, 3x, etc and then scale it back down in post-processing.
- rzzzt 5y ago
  Downscaling doesn't bother me as much for some reason. Icons scaled to 125% or 150% from their 1x size look more blurry than the 2x version of the same icon scaled down. It also looks better to me if the system uses integer scaling to blow up the 1x icon to 200% size first, then scale down from there.