Manual Installation

Caution

0. Download the latest stable build of Optiscaler from here.

We're also currently testing new prereleases before a new major version (recommended if RDNA4 user) - Nightly builds

Note

Since 0.7.7-Pre8, forced debugging is disabled. If you want to send a log file, set LogLevel=0 and LogToFile=true and zip the log if it's too big.

Note

• Pressing Insert should open the Optiscaler Overlay in-game with all of the options (ShortcutKey= can be changed in the config file).
• Pressing Page Up shows the performance stats overlay in the top left, and can be cycled between different modes with Page Down.
• If Opti overlay is instantly disappearing after trying Insert a few times, maybe try Alt + Insert (reported workaround for alternate keyboard layouts).

For more info, please check Readme - How it works?

Tip

0b. Please check the General Compatibility List first for already documented fixes and workarounds - same for FSR4 Compatibility List

Step-by-step installation:

1. Extract all of the Optiscaler files by the main game exe

Important

(for Unreal Engine games, look for the win_shipping.exe in one of the subfolders, generally <path-to-game>\Game-or-Project-name\Binaries\Win64 or WinGDK\, ignore the Engine folder)

Example paths - Expedition 33\Sandfall\Binaries\Win64, Jedi Survivor\SwGame\Binaries\Win64, Cyberpunk 2077\bin\x64, HITMAN 3\Retail, Warhammer 40,000 DARKTIDE\binaries, The Witcher 3\bin\x64_dx12

2. Rename OptiScaler's OptiScaler.dll (for old versions, it's nvngx.dll) to one of the supported filenames (preferred dxgi.dll, but depends on the game)$^1$

Note

For FSR2/3-only games that don't have DLSS (e.g. The Callisto Protocol or The Outer Worlds: Spacer's Choice Edition), you have to provide the nvngx_dlss.dll in order to use DLSS in Optiscaler - download link e.g. TechPowerUp or Streamline SDK repo

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Step-by-step installation:

1. Extract all of the Optiscaler files by the main game exe

Important

(for Unreal Engine games, look for the win_shipping.exe in one of the subfolders, generally <path-to-game>\Game-or-Project-name\Binaries\Win64 or WinGDK\, ignore the Engine folder)

Example paths - Expedition 33\Sandfall\Binaries\Win64, Jedi Survivor\SwGame\Binaries\Win64, Cyberpunk 2077\bin\x64, HITMAN 3\Retail, Warhammer 40,000 DARKTIDE\binaries, The Witcher 3\bin\x64_dx12

2. Rename OptiScaler's OptiScaler.dll (for old versions, it's nvngx.dll) to one of the supported filenames (preferred dxgi.dll, but depends on the game)$^1$

3a. Either locate the nvngx_dlss.dll file (for UE games, generally in one of the subfolders under Engine/Plugins), create a copy, rename the copy to nvngx.dll and put it beside Optiscaler

3b. OR download nvngx_dlss.dll from e.g. TechPowerUp or Streamline SDK repo if you don't want to search, rename it to nvngx.dll and put it beside Optiscaler

Tip

If AMD/Intel and DLSS inputs aren't visible even after selecting Yes during Install, game requires adding Fakenvapi

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Caution

If you need Nukem or Fakenvapi, now check their respective pages:

• NukemFG mod
• Fakenvapi

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Tip

[1] Linux users should add renamed dll to overrides:

WINEDLLOVERRIDES=dxgi=n,b %COMMAND% 

Important

Please don't rename the ini file, it should stay as OptiScaler.ini.

Note

OptiScaler supports these filenames:

• dxgi.dll
• winmm.dll
• d3d12.dll (from 0.7.7 nightlies)
• dbghelp.dll (from 0.7.7 nightlies)
• version.dll
• wininet.dll
• winhttp.dll
• OptiScaler.asi (needs Ultimate ASI Loader x64 or similar)

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Note

Example of correct AMD/Intel installation (with additional Fakenvapi and Nukem mod)