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so does upscaling/downscaling really make something look better?

#1KillerzOverHerePosted 10/6/2013 8:27:34 AM
If a game's max res is 1080p, and I hooked up my pc to a 1600p monitor, would the game look better? Would the monitor upscale the image? I'm looking for a bit of information about these topics and any help is appreciated.
#2LordSeiferPosted 10/6/2013 8:30:28 AM(edited)
would it look better than what? thats a very subjective question.

your monitor will do whatever its told to do, if it just ran it natively at 1080p you would get black bars around the screen. your monitor would most likely enlarge the image to fill your screen but its not upconverting it.

the quality of this process will be specific to your monitor.
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#3KillerzOverHere(Topic Creator)Posted 10/6/2013 8:30:23 AM
LordSeifer posted...
would it look better than what? thats a very subjective question.


would the game look better on the 1600p monitor? or no differnence than a 1080p monitor?
#4UltimateUmbreonPosted 10/6/2013 8:31:34 AM
Is the game running at 1080p or 1600p on the new monitor?
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#5KillerzOverHere(Topic Creator)Posted 10/6/2013 8:33:14 AM
UltimateUmbreon posted...
Is the game running at 1080p or 1600p on the new monitor?


the max res is 1080p of the game, it can run any higher. It's hypothetical.
#6DV8ingSourcesPosted 10/6/2013 8:54:01 AM(edited)
It would look worse on 1600p. That said, 1080p is rarely a 'max' resolution and ini tweaks can usually solve any resolution problems...

Downscaling works like AA and can make some things look much better than otherwise.

http://cloud-2.steampowered.com/ugc/595815243084248737/04507F4F14E3C18F17A3D4DEDD0BD9386FFDD95A/

That is GTA with some superscaling which is then downscaled. Notice the lack of 'jaggies' and increased detail compared to a vanilla shot.

edit: To explain a bit better, in the above example the gpu would render at 2160p then squish it back down into 1080p by taking the 4 pixels of the 2160p image and averaging out the RGB values.

What you are asking about is monitor scaling chips... Those won't make an image look better in most cases. I'm not even sure you could downscale without the GPU's help.
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#7KillerzOverHere(Topic Creator)Posted 10/6/2013 8:50:50 AM
DV8ingSources posted...
It would look worse on 1600p. That said, 1080p is rarely a 'max' resolution and ini tweaks can usually solve any resolution problems...

Downscaling works like AA and can make some things look much better than otherwise.

http://cloud-2.steampowered.com/ugc/595815243084248737/04507F4F14E3C18F17A3D4DEDD0BD9386FFDD95A/

That is GTA with some superscaling which is then downscaled. Notice the lack of 'jaggies' and increased detail compared to a vanilla shot.


thanks
#8ElDudorinoPosted 10/6/2013 8:54:04 AM(edited)
"Upscaling" and "Downscaling" is basically just blowing up or shrinking down a picture. By itself, it has nothing to do with picture quality other than the obvious which is that a bigger picture looks "worse" than a smaller picture and also if the number of pixels in an image does not divide evenly into the number of pixels in the display resolution then some pixels will be doubled while others will not. So, either upscaling or downscaling on its own will typically make an image look worse unless the target resolution is for example twice the resolution of the image in question (such as 640x480 -> 1280x960).

Many (most?) console players have this idea that upscaling is a way to improve graphics. By itself, it isn't. However, if you blow a smaller image up to a larger size and then use those extra pixels to smooth out an image, then you can in some cases come up with a better-looking picture. Anti-aliasing generally works off of that principle. There are a lot of different methods for doing this, though, since obviously just applying blur to an image isn't always going to look very nice.

By the way, YES, your monitor will upscale the image from 1080p to 1600p (unless your computer does the upscaling for it). If a 1080p picture is fullscreen on a 1600p monitor, that means it has been upscaled. If it weren't upscaled, then it would just be a small rectangle in the middle of the screen surrounded by black borders. This upscaling that takes place will probably make your image look a bit worse. If you can tweak the game's config files to make it render images at 1600p, though, THEN it should look better.
#9-CJF-Posted 10/6/2013 9:34:02 AM
Upscaling will always make images look pixelated / blurry while downscaling will always make them look sharper. Now, rendering in higher resolution is a whole different story. Most modern games can be rendered in high resolution, as can 3D elements in emulators (see PCSX2 and Dolphin for good examples). Old games and emulators sometimes make use of shaders such as xBRZ and HQ4X with nearest-neighbor algorithms to make the image less blurry and pixelated when dealing with 2D elements, or filters such as scanlines which make the effects of upscaling less noticeable.
#10KillerzOverHere(Topic Creator)Posted 10/6/2013 9:43:58 AM
-CJF- posted...
Upscaling will always make images look pixelated / blurry while downscaling will always make them look sharper. Now, rendering in higher resolution is a whole different story. Most modern games can be rendered in high resolution, as can 3D elements in emulators (see PCSX2 and Dolphin for good examples). Old games and emulators sometimes make use of shaders such as xBRZ and HQ4X with nearest-neighbor algorithms to make the image less blurry and pixelated when dealing with 2D elements, or filters such as scanlines which make the effects of upscaling less noticeable.


say i'm watching a 1440p video on youtube on a 720p monitor (god forbid) So the video downscales to 720p, but it looks sharper then if i set the video to 720p correct?