Overclock.net › Forums › Components › Monitors and Displays › Way to Output 1080p as Native 4k?
New Posts  All Forums:Forum Nav:

Way to Output 1080p as Native 4k? - Page 2

post #11 of 17
Thread Starter 
Quote:
Originally Posted by spinFX View Post

Thats pretty much what will happen if you just set your res to 1080p on your 4k monitor....

No, then you get interpolation using some bicubic algorithm like what is described here: https://pcmonitors.info/reviews/dell-p2415q/. Although the article does note it's not as bad other upscaling 4ks.
Quote:
Originally Posted by spinFX View Post

It is though, because its only the weird ones that wanna do something like this tongue.gif

Just get a 4k monitor, 4k output, and adjust windows scaling to suit your needs.
What you want seems strange, how could there be any interpolation on the stretched image without any lag being introduced as well as keeping the image "crisp", just run your 4k monitor @ 4k tongue.gif

Running a 23.8 inch at 4k is still going to kill my card for games, and introduce headaches for reading text even with my 15/15 vision. Nothing "weird," here. I'd use scaling, but Windows 7 doesn't seem to be doing that good of a job at it :/

I guess I'll just have to stick to my 1080p monitor. This just seemed like such a simple tweak to remap 1920x1080 onto a 4k target, but I guess not. Oh well.
post #12 of 17
Quote:
Originally Posted by Omicron View Post

Quote:
Originally Posted by spinFX View Post

Thats pretty much what will happen if you just set your res to 1080p on your 4k monitor....

No, then you get interpolation using some bicubic algorithm like what is described here: https://pcmonitors.info/reviews/dell-p2415q/. Although the article does note it's not as bad other upscaling 4ks.
Quote:
Originally Posted by spinFX View Post

It is though, because its only the weird ones that wanna do something like this tongue.gif

Just get a 4k monitor, 4k output, and adjust windows scaling to suit your needs.
What you want seems strange, how could there be any interpolation on the stretched image without any lag being introduced as well as keeping the image "crisp", just run your 4k monitor @ 4k tongue.gif

Running a 23.8 inch at 4k is still going to kill my card for games, and introduce headaches for reading text even with my 15/15 vision. Nothing "weird," here. I'd use scaling, but Windows 7 doesn't seem to be doing that good of a job at it :/

I guess I'll just have to stick to my 1080p monitor. This just seemed like such a simple tweak to remap 1920x1080 onto a 4k target, but I guess not. Oh well.

Oh, if its using bicubic then it's not that bad. bicubic scaling isn't as "fuzzy" as standard bilinear.


Don't take my word for it, see for yourself. Open a video in MadVR, and take screenshots comparing bicubic luma/chroma scaling to nearest neighbor (which is essentially 4:1) and bilinear. You'll find that bicubic looks pretty good.


In other words, you should just use the monitor's interpolation and run most things at 1080p.
Edited by brucethemoose - 11/28/16 at 11:54am
Bruce
(20 items)
 
  
CPUMotherboardGraphicsRAM
4670k Asus Z87 Pro HIS 7950 IceQ X2 2x2gb + 2x4gb DDR3 1333 
Hard DriveHard DriveHard DriveOptical Drive
Seagate 1TB 7200RPM OCZ Agility 4 128GB PNY 240GB LG Blu Ray Burner 
CoolingOSMonitorKeyboard
Hyper 212+ with extra fan Windows 10 Education x64 Shimian QH270 @110hz Medieval Dell OEM Keyboard 
PowerCaseMouseAudio
Corsair TX750 V1 Antec 300 Black Illusion  Logitech G400s Xonar ST 
AudioOtherOtherOther
Fostex T50rp with BMF mod Archer T9E Wifi adapter 2x Yate Loon D12SL-12D 120x38mm fans Thermalright TY-143 fan 
  hide details  
Reply
Bruce
(20 items)
 
  
CPUMotherboardGraphicsRAM
4670k Asus Z87 Pro HIS 7950 IceQ X2 2x2gb + 2x4gb DDR3 1333 
Hard DriveHard DriveHard DriveOptical Drive
Seagate 1TB 7200RPM OCZ Agility 4 128GB PNY 240GB LG Blu Ray Burner 
CoolingOSMonitorKeyboard
Hyper 212+ with extra fan Windows 10 Education x64 Shimian QH270 @110hz Medieval Dell OEM Keyboard 
PowerCaseMouseAudio
Corsair TX750 V1 Antec 300 Black Illusion  Logitech G400s Xonar ST 
AudioOtherOtherOther
Fostex T50rp with BMF mod Archer T9E Wifi adapter 2x Yate Loon D12SL-12D 120x38mm fans Thermalright TY-143 fan 
  hide details  
Reply
post #13 of 17
Thread Starter 
Bumping this in case anyone knows if you can use AMD's Virtual Super Resolution, or Nvidia's Dynamic Super Resolution in reverse to accomplish 1080p to 4k "1:4 pixel perfect" upscaling on the GPU/Driver side. The aforementioned technologies are really used for downsampling a larger than the monitor resolution, but could work in reverse.
Quote:
Originally Posted by brucethemoose View Post

In other words, you should just use the monitor's interpolation and run most things at 1080p.

Still creates blur and is not pixel perfect, and having the monitor handle upscaling will definitely introduce some degree of input lag.
post #14 of 17
You'll be operating at +2 LOD (equal to 4x AF) texture detail loss, plus 4x geometry loss(4x MSAA). If you somehow make up for those - such as 200% texture resolution at 1K plus 4xMSAA - it might be possible. Do worry about the in-game texture quality setting; mip-maps cannot lose sharpness any more without further notice.
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
post #15 of 17
Thread Starter 
Quote:
Originally Posted by mtcn77 View Post

You'll be operating at +2 LOD (equal to 4x AF) texture detail loss, plus 4x geometry loss(4x MSAA). If you somehow make up for those - such as 200% texture resolution at 1K plus 4xMSAA - it might be possible. Do worry about the in-game texture quality setting; mip-maps cannot lose sharpness any more without further notice.

Yeah, image quality drops as I'd no longer have the 4k sharpness, this is implied but is on purpose.

I think I might have just solved my issue, I am hearing something about built in "GPU Scaling" that seems to do exactly what I am after. Here is AMD's page:
http://support.amd.com/en-us/kb-articles/Pages/UnableToSetGPUScaling.aspx

Nvidia likely has something as well.
post #16 of 17
Quote:
Originally Posted by Omicron View Post

Yeah, image quality drops as I'd no longer have the 4k sharpness, this is implied but is on purpose.

I think I might have just solved my issue, I am hearing something about built in "GPU Scaling" that seems to do exactly what I am after. Here is AMD's page:
http://support.amd.com/en-us/kb-articles/Pages/UnableToSetGPUScaling.aspx

Nvidia likely has something as well.
If you know whether game comes with 4K specific options, it would help you. You really need to avoid blurry mipmaps. The card can 'sample' from higher textures at a lower resolution, still.
I would have suggestions regarding anisotropic filtering, but my experience is it is really 'aliased'. You are better off withholding too much of it for it introduces undersampled textures(its quality doesn't compensate the LOD/mipmap upscaling). Not like antialiasing.
Edited by mtcn77 - 1/9/17 at 3:46pm
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
post #17 of 17
Thread Starter 
Bumping this again in case there is a small chance there is a converter box out there I am not aware of that can do this:


Bonus points if it can do 1:9 for 720p to 4k, and can handle that content protection stuff.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › Way to Output 1080p as Native 4k?