Fix for blurry non-native resolutions/Fix for blurry downsampling under 4k

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AutisticStoner 25 Jan, 2016 @ 4:04pm

So in dsr i prefer to have smoothness set to 0%. this means I can only use 4x (4k) because the lines look like crud otherwise. so the solution i came up with was instead of going in multiples of 1080p, I went in multiples of 1920x1080p=x or the amount of megapixels in 1080p. by scaling this using a special forumula, I was able to find precisely the right resolutions to get that crisp look without having to use dsr smoothing. this works in reverse, as the megapixel count is more accurate when scaled then by scaling the height and width.
this is the formula:

native width * native height = x
x * (.25, .5, .75, 1.25, etc.)= y
y * (16/9 or whatever your ratio is)= g
square root of g= h
h= width of desired resolution
(for 16:9 users) find closest to h you can here:
https://pacoup.com/2011/06/12/list-of-true-169-resolutions/

my list for 1080p's megapixel count:
1080p (0.25xMP):960x540
1080p (0.5xMP):1360x765
1080p (0.75xMP):1664x936
1080p(1xMP):1920x1080(duh)
1080p(1.25xMP):2144x1206
1080p(1.5xMP):2352x1323
1080p(1.75xMP)2544x1431
1080p(2xMP)3840x2160
there you go! :)

Last edited by AutisticStoner; 25 Jan, 2016 @ 7:47pm

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Showing 1-15 of 29 comments

Air 25 Jan, 2016 @ 4:49pm

3840x2160 is 400% the size of 1920x1080.

AutisticStoner 25 Jan, 2016 @ 4:53pm

actually no
its going by megapixels
so yes its 4x but 4 is the square root of 2 so its 200%^2

76561198258988800 25 Jan, 2016 @ 5:25pm

200%^² = 400%

Fix it please, as it is very wrong.

Bad 💀 Motha 25 Jan, 2016 @ 6:44pm

Not sure why you have 175% as a listed option; NVIDIA DSR usually will not have that; but instead has 1.78% which is 2560x1440 (1080p + 1.78% up-sampling)

AutisticStoner 25 Jan, 2016 @ 7:46pm

Bad-Motha i rewrote the description. If you play at 0% smoothness with dsr 1.78% looks absolutely horrid, it does not look like ogssaa at all. if you go at 1.75xMP it looks like actual anti aliasing.

Bad 💀 Motha 25 Jan, 2016 @ 7:54pm

You must just have a crappy display then, IDK.
Doing 1440p or 2160p using NVIDIA DSR + 15% smoothing looks great on my 1080p displays
But I also don't really need to; I have 2x 1080p screens and 1x 2160p screen all connected on same GPU (980 Ti)

AutisticStoner 25 Jan, 2016 @ 7:57pm

I'm talking about 0% smoothing. if its 15% smoothed its fine, but I prefer native downsampling. To each his own.

This is mostly useful for those who need to play at sub-1080p resolutions (cough FAR CRY 4 cough) and prefer the performance of native downsampling.

AutisticStoner 16 Oct, 2017 @ 5:52pm

you're welcome! Glad I could help!

junglerooster78 3 Feb, 2018 @ 3:21pm

Thank you very much Schiz0id, I remember seeing huge improvements in visual Quality when staying in the HD spectrum so when I found this post, I kinda got what you were getting at and made a custom resolution for your 1.75X MP and its a world of difference. Finally got the overall improvement Iv'e been looking for and knew my gpu could handle but without this important piece was missing.

jpinard 13 Feb, 2019 @ 3:30pm

@MURDERGIMP.
@ nS.FdD
@junglerooster98

I'm a little confused on how this works, but am excited and hopeful it will be the answer I've been looking for!

My monitor has a native resolution of 2560x1600 and when I play games at 1920x1200 (because my eyes are terrible and things are too small at native res), then everything gets blurry. So how would this work (and would it at all) for my 16:10 resolution?

Also, is this post intended to say going from higher resolution to lower resolution can be made to look better?

Last edited by jpinard; 13 Feb, 2019 @ 3:32pm

#10

_I_ 13 Feb, 2019 @ 3:41pm

if the monitor or gpu is scaling it will not look good

best solution is to run the game at the monitors native res

if the game does not have optinos for that res, set nvidia control panel to use gpu scaling and no scaling

https://gtm.steamproxy.vip/ugc/702911555411894244/4F910208D4D258E7306B16737AF56C140B5ED26A/

Last edited by _I_; 13 Feb, 2019 @ 3:42pm

#11

jpinard 13 Feb, 2019 @ 4:08pm

But no scaling would just make it smaller on my screen wouldn't it? I need it to be full-screen but less blurry.

#12

_I_ 13 Feb, 2019 @ 4:38pm

center timings will be the image in the center of the screen, not stretched/scaled
the image will look as intended

or set it to use scaling at a res that exactly half of the display res
if its a 4k display (3840x2160) set it to 1920x1080
then each pixel drawn will take up 4(2x2)pixels on the display

#13

AutisticStoner 13 Feb, 2019 @ 9:45pm

Originally posted by jpinard:
@MURDERGIMP.
@ nS.FdD
@junglerooster98

I'm a little confused on how this works, but am excited and hopeful it will be the answer I've been looking for!

My monitor has a native resolution of 2560x1600 and when I play games at 1920x1200 (because my eyes are terrible and things are too small at native res), then everything gets blurry. So how would this work (and would it at all) for my 16:10 resolution?

Also, is this post intended to say going from higher resolution to lower resolution can be made to look better?

16:10 is a golden ratio so just divide 2560 by 2 and 1600 by 2 that's 1280x800

that way 1 pixel will by 4 pixels, so it still looks like a square pixel.

Last edited by rotNdude; 14 Feb, 2019 @ 7:53am

#14

jpinard 14 Feb, 2019 @ 4:49pm

Originally posted by MURDERGIMP.:
Originally posted by jpinard:
@MURDERGIMP.
@ nS.FdD
@junglerooster98

I'm a little confused on how this works, but am excited and hopeful it will be the answer I've been looking for!

My monitor has a native resolution of 2560x1600 and when I play games at 1920x1200 (because my eyes are terrible and things are too small at native res), then everything gets blurry. So how would this work (and would it at all) for my 16:10 resolution?

Also, is this post intended to say going from higher resolution to lower resolution can be made to look better?
16:10 is a golden ratio so just divide 2560 by 2 and 1600 by 2 that's 1280x800

that way 1 pixel will by 4 pixels, so it still looks like a square pixel.

The problem here is I can't run a resolution that low in the games I want to run. Darn.

#15

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All Discussions > Steam Forums > Hardware and Operating Systems > Topic Details

Date Posted: 25 Jan, 2016 @ 4:04pm

Posts: 29

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