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Difference between revisions of "Glossary:Downsampling"

From PCGamingWiki, the wiki about fixing PC games
(It's funny I found the best and worst scenarios for this in the same week. In Mass Effect it's the only way to have "true antialiasing" without lighting glitches, while in Mirror's Edge you are gonna have a worse time with the UI if you were playing 1080p)
(Added options for Linux)
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'''Key points'''
 
'''Key points'''
−
{{ii}} Brute force alternative to [[FSAA]].
+
{{ii}} Brute force alternative to [[Glossary:Anti-aliasing (AA)|Anti-aliasing (AA)]].
 
{{++}} Fully compatible with every game supporting "higher" resolutions
 
{{++}} Fully compatible with every game supporting "higher" resolutions
 
{{--}} May have all the game-specific downsides of running at higher resolutions (e.g. stretched UI)
 
{{--}} May have all the game-specific downsides of running at higher resolutions (e.g. stretched UI)
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}}
 
}}
  
−
==AMD==
+
===AMD===
−
 
 
 
{{Fixbox|description=Enable Virtual Super Resolution (VSR)|ref={{cn|date=July 2016}}|fix=
 
{{Fixbox|description=Enable Virtual Super Resolution (VSR)|ref={{cn|date=July 2016}}|fix=
 
{{ii}} Monitor's native resolution must be one of the following: 1920 X 1080 @ 60Hz, 1920 X 1200 @ 60Hz, 2560 x 1440 @ 60Hz, 1920 x 1080 @ 120Hz.<ref name="VSR">http://www.goldfries.com/downloadables/omega/AMD_Catalyst_Omega_Reviewer_Guide.pdf</ref>
 
{{ii}} Monitor's native resolution must be one of the following: 1920 X 1080 @ 60Hz, 1920 X 1200 @ 60Hz, 2560 x 1440 @ 60Hz, 1920 x 1080 @ 120Hz.<ref name="VSR">http://www.goldfries.com/downloadables/omega/AMD_Catalyst_Omega_Reviewer_Guide.pdf</ref>
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}}
 
}}
  
−
==Nvidia==
+
===Nvidia===
−
 
 
 
{{Fixbox|description=Enable Dynamic Super Resolution (DSR)|ref=<ref name="DSR"/>|fix=
 
{{Fixbox|description=Enable Dynamic Super Resolution (DSR)|ref=<ref name="DSR"/>|fix=
 
{{ii}} Requires GTX 4XX or later.<ref name="DSR">[http://www.geforce.com/hardware/technology/dsr/supported-gpus DSR | Supported GPUs]</ref> A list of supported GPUs is available [http://www.geforce.com/hardware/technology/dsr/supported-gpus here].
 
{{ii}} Requires GTX 4XX or later.<ref name="DSR">[http://www.geforce.com/hardware/technology/dsr/supported-gpus DSR | Supported GPUs]</ref> A list of supported GPUs is available [http://www.geforce.com/hardware/technology/dsr/supported-gpus here].
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{{Fixbox|description=Enable Custom Resolution|ref=|fix=
 
{{Fixbox|description=Enable Custom Resolution|ref=|fix=
 
* See [[Glossary:Custom resolution|Custom Resolution]].
 
* See [[Glossary:Custom resolution|Custom Resolution]].
 +
}}
 +
 +
==Linux==
 +
===[https://github.com/Plagman/gamescope Gamescope]===
 +
{{++}} Can be used on both X.org and Wayland.
 +
{{Fixbox|description=Setting Up|ref=<ref>[https://github.com/Plagman/gamescope/issues/131#issue-746928929 Downscaling is a fun accidental feature. · Issue #131 · Plagman/gamescope]</ref>|fix=
 +
# Install gamescope, e.g. from your destribution repositories.
 +
# For Steam games, add {{code|gamescope -w 3840 -h 2160 -W 1920 -H 1080 -f -- %command%}} as a launch option, where {{code|3840}} and {{code|2160}} are resolution you will be scaled from and {{code|1920}} and {{code|1080}} are resolutions you will be scaling to.
 +
# For non-Steam games, replace {{code|%command%}} with actual executable name and launch them from a script or a terminal.
 +
}}
 +
 +
===xpra + [https://github.com/kaueraal/run_scaled run_scaled]===
 +
{{Fixbox|description=Setting Up|ref=<ref>[https://www.gamingonlinux.com/2020/04/how-to-upscale-old-games-on-linux How-to: upscale old games on Linux | GamingOnLinux]</ref>|fix=
 +
# Install xpra, e.g. from your destribution repositories, for Ubuntu and similar {{code|sudo apt install xpra xvfb}}.
 +
# Clone respository of run_scaled (make sure git is installed): {{code|git clone https://github.com/kaueraal/run_scaled.git}}.
 +
# Optionally install the script, {{code|cp run_scaled ~/.local/bin/}}.
 +
# Launch the game such as {{code|run_scaled --scale=3}}.
 +
}}
 +
 +
===xrandr===
 +
{{--}} Scales the display.
 +
{{Fixbox|description=Setting Up|ref=<ref>[https://www.reddit.com/r/linuxquestions/comments/3y2arc/any_way_to_get_something_like_virtual_super/ Any way to get something like virtual super resolution in linux? : linuxquestions]</ref>|fix=
 +
# Run {{code|xrandr --scale 2x2}} (x2 parameter can be omitted<ref>[https://man.archlinux.org/man/xrandr.1 xrandr(1) — Arch manual pages]</ref>) to scale 2x.
 +
# You have to choose an output using {{code|--output}} option.
 
}}
 
}}
  
 
{{References}}
 
{{References}}

Revision as of 22:54, 1 May 2021

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Key points

Brute force alternative to Anti-aliasing (AA).
Fully compatible with every game supporting "higher" resolutions
May have all the game-specific downsides of running at higher resolutions (e.g. stretched UI)

Windows

GeDoSaTo

GeDoSaTo and Borderless Gaming can be used together.
Allows games to be downsampled at any resolution, whenever a configuration file is available.
Each game requires a specific configuration file with specific instructions beforehand, as such most titles may not be supported by default.
Setting Up[citation needed]
  1. Download and install the following setup, outside any of the Program Files directories.
  2. Run the desired game, and navigate to it's Options menu.
  3. Under Resolution, choose a value over the native monitor's resolution.

Example

  • Valkyria Chronicles GeDoSaTo Downsampling Example.jpg


Notes

Updater/installer may crash. From an administrator command prompt, run REG ADD "HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319" /v SchUseStrongCrypto /t REG_DWORD /d 1 /reg:32[1]
GeDoSaTo may fail to inject itself if it was installed inside any of the Program Files folders.
Certain games such as Valkyria Chronicles may use an external configuration launcher.
Adding New Resolutions[citation needed]
  1. Click on the Edit Settings button.
  2. Add the following line.
renderResolution [YourWidth]x[YourHeight]@[YourFrequency]

AMD

Enable Virtual Super Resolution (VSR)[citation needed]
Monitor's native resolution must be one of the following: 1920 X 1080 @ 60Hz, 1920 X 1200 @ 60Hz, 2560 x 1440 @ 60Hz, 1920 x 1080 @ 120Hz.[2]
  1. Open the Control Center.
  2. Switch the view to Advanced Mode.
  3. Choose My Digital Flat Panels from the sidebar.
  4. Check Enable virtual super resolution.
  5. Click Apply.
Enable Custom Resolution

Nvidia

Enable Dynamic Super Resolution (DSR)[3]
Requires GTX 4XX or later.[3] A list of supported GPUs is available here.
This option may not appear until you use GeForce Experience to set a supported game's resolution to a DSR.
You can also set your desktop resolution to a DSR from the resolution configuration in the NVIDIA Control Panel.
  1. Open the NVIDIA Control Panel.
  2. Go to 3D Settings, Manage 3D settings.
  3. Set the DSR Factors and Smoothness.
Disables custom monitor refresh rates forced by custom resolution. As a workaround goto display -> advanced display properties -> monitor settings to set your previously created refresh rate.[4]
Enable Custom Resolution

Linux

Gamescope

Can be used on both X.org and Wayland.
Setting Up[5]
  1. Install gamescope, e.g. from your destribution repositories.
  2. For Steam games, add gamescope -w 3840 -h 2160 -W 1920 -H 1080 -f -- %command% as a launch option, where 3840 and 2160 are resolution you will be scaled from and 1920 and 1080 are resolutions you will be scaling to.
  3. For non-Steam games, replace %command% with actual executable name and launch them from a script or a terminal.

xpra + run_scaled

Setting Up[6]
  1. Install xpra, e.g. from your destribution repositories, for Ubuntu and similar sudo apt install xpra xvfb.
  2. Clone respository of run_scaled (make sure git is installed): git clone https://github.com/kaueraal/run_scaled.git.
  3. Optionally install the script, cp run_scaled ~/.local/bin/.
  4. Launch the game such as {{{1}}}.

xrandr

Scales the display.
Setting Up[7]
  1. Run xrandr --scale 2x2 (x2 parameter can be omitted[8]) to scale 2x.
  2. You have to choose an output using --output option.


References