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Cake day: June 4th, 2023

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  • Domi@lemmy.secnd.metoLinux Gaming@lemmy.worldHDR Confusion
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    2 months ago

    But why does it end up washing out colors unless I amplify them in kwin? Is just the brightness absolute in nits, but not the color?

    The desktop runs in SDR and the color space differs between SDR and HDR, meaning you will end up with washed out colors when you display SDR on HDR as is.

    When you increase the slider in KDE, you change the tone mapping but no tone mapping is perfect so you might want to leave it at the default 0% and use the HDR mode only for HDR content. In KDE for example, colors are blown out when you put the color intensity to 100%.

    Why does my screen block the brightness control in HDR mode but not contrast? And why does the contrast increase the brightness of highlights, instead of just split midtones towards brighter and darker shades?

    In SDR, your display is not sent an absolute value. Meaning you can pick what 100% is, which is your usual brightness slider.

    In HDR, your display is sent absolute values. If the content you’re displaying requests a pixel with 1000 nits your display should display exactly 1000 nits if it can.

    Not sure about the contrast slider, I never really use it.

    Why is truehdr400 supposed to be better in dark rooms than peak1000 mode?

    Because 1000 nits is absurdly bright, almost painful to watch in the dark. I still usually use the 1000 mode and turn on a light in the room to compensate.

    Why is my average emission capped at 270nits, that seems ridiculously low even for normal SDR screens as comparison.

    Display technology limitations. OLED screens can only display the full brightness over a certain area (e.g. 10% for 400 nits and 1% for 1000 nits) before having to dim the screen. That makes the HDR mode mostly unuseable for desktop usage since your screen will dim/brighten when moving large white or black areas around the screen.

    OLED screens simply can’t deliver the brightness of other display technologies but their benefits easily make it worth it.






  • We don’t have many unit tests that test against live APIs, most use mock APIs for testing.

    The only use for this header would be if somebody sees it during development, at which point it would already be in the documentation or if you explicitly add a feature to look if the header is present. Which I don’t see happening any time soon since we get mailed about deprecations as well.


  • I don’t really get the purpose of a header like this, who is supposed to check it? It’s not like developers casually check the headers returned by an API every week.

    Write them a mail if you see deprecated functions being used by a certain API key, probably much more likely to reach somebody that way.

    Also, TIL that the IETF deprecated the X- prefix more than 10 years ago. Seems like that one didn’t pan out.





  • Same.

    The story isn’t super deep and it isn’t necessarily profound – it’s not really a belief-changer, outside of, perhaps, your idea of what a videogame is – but the experience itself is beautiful and rewarding and I’m not sure it can be recaptured.

    Spoilers for Outer Wilds ahead

    I had an interesting discussion about this game with a friend who didn’t feel anything after finishing Outer Wilds. We came to the conclusion that while the “concept” of Outer Wilds is incredibly sad/beautiful, not everyone feels something for concepts and ideas.

    For example, my friend is a serious cry baby when characters he knows well die in games/shows/movies. We barely know anything about the Outer Wilds universe, its inhabitants or even our protagonist, so there’s nothing sad about individual characters perishing.

    Yet you, I and many others deeply connected with a story about the volatility of the universe and life itself and how everything has to come to an end.

    (DLC spoilers ahead)

    The same applies to the DLC, there is nothing inherently sad about either of us perishing. We barely know anything about the stranger, the owlks, the prisoner or our protagonist. But the idea of both of us being dead inside of a simulation, drifting through space on a dying vessel in a dying universe is a heart breaking thought to me.

    As disappointed as I was that not everyone seems to experience these emotions, it for sure is interesting.

    ::spoiler