If if I take a screenshot of a game at 1920x1080 and then shrink it down a little in image viewer, it suddenly looks a lot better. But pixel density of my monitor isn't changing. So what causes this effect? And why haven't developers caught onto it?
super sampling
>>377492320
I don't think so, I already have anti aliasing maxed in the settings
>>377492702
basically a psuedo supersampling
>>377492127
>and why haven't developers caught onto it
You can run 4k in 1080p. Its just that it is far too demanding for what you get out unless you're fine with low fps.
>>377493098
I see, so I just need to output at a resolution higher than native to the monitor?
>>377492127
I unironically think Morrowind is more visually appealing than Skyrim.
>>377493161
That is how it works, yes. A lot of modern games also have ingame options to render from a lower or higher resolution (but keeping native UI elements etc) as well as the normal resolution option.
>And why haven't developers caught onto it?
This is basically supersampling. In many games you can find a "resolution scale" slider. Set it to anything above 100% (say, 110%) and it will render the game at that percentage relative to your set resolution. Since the image has to be scaled down it'll appear sharper and better looking overall.
>>377492127
There are a few ways to do this, it's just computationally expensive, for obvious reasons