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Merge pull request #64 from Nucleoprotein/spdlog
7 months ago
Common Use spdlog 7 months ago
Deps Use spdlog 7 months ago
Other Update FF13Fix.ini 7 months ago
d3d9ex Use spdlog 7 months ago
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LICENSE Initial commit 6 years ago Update 7 months ago
d3d9ex.sln Use spdlog 7 months ago


Performance and bug fixes for the PC versions of FF13 and FF13-2


This is a fork of OneTweakNG, containing additional fixes for FF13. Thanks Nucleoprotein for starting this!


Download the latest release and add both d3d9.dll and FF13Fix.ini to the folder FINAL FANTASY XIII\white_data\prog\win\bin for FF13 and to the folder FINAL FANTASY XIII-2\alba_data\prog\win\bin for FF13-2.

You can to change FF13Fix.ini if you want to change any configuration (e.g. uncap the framerate or disable controller vibration).

What this does

Removes the frame pacer

Disabling this greatly improves the frame rate in certain situations.

Removes stuttering caused by new controllers being scanned every second

This caused stuttering specially if you didn't have a connected controller after the last opening of Steam.

Note that if you want to use a controller you need to connect it before opening the game (i.e. this patch removes the hotplugging support)

Enables controller vibration

This can be enabled/disabled in the FF13Fix.ini .

Uncaps the frame rate (optional)

Using higher frame rates can cause jankness on facial animations during ingame cutscenes. See

Enables Triple Buffering

This may make the frame rate more consistent.

Uses your desktop monitor refresh rate in full screen mode

By default the game forced a 60Hz refresh rate in full screen mode. With this mod the game uses the same refresh rate that you are using in your operating system.

Changes to where the memory is allocated on certain vertex buffers

This considerably improves the frame rate when 2D elements are being disabled on the screen (i.e. minimap or battle menu HUD). This fix is not new, it is from OneTweakNG.

Fixes misaligned screen space effects (fixes 1440p resolution)

Fix the enemy scan text on resolutions over 720p (FFXIII only)

The game calls SetScissorRect using a rectangle hardcoded with the 720p coordenates. This correct the coordenates and rectangle size in order to fix it.

Usage with DXVK

People use DXVK on Windows to work around crashes with recent AMD Navi cards. If you are using Nvidia on Windows, you probably don't need it.

  • Rename DXVK's x86 d3d9.dll file to dxvk.dll. Keep FF13Fix as d3d9.dll.

Usage with the 4GB Large Address Aware patch (Recommended)

You may wish to patch the games to allow them to access more than 2GB of RAM. This seems to avoid crashes in FF13-2 and FF13 (especially when using triple buffering, playing on 4K+ resolutions, using DXVK and/or Reshade, or using HD texture/model mods).


  • Create a copy of the unpatched ffxiiiimg.exe to the folder FINAL FANTASY XIII\white_data\prog\win\bin. Name it untouched.exe.
  • Patch the original ffxiiiimg.exe (you can use


Usage with Reshade

Regular Direct3D9 users:

  • Install ReShade first. Rename ReShade's d3d9.dll to ReShade32.dll; Install FF13Fix normally, keeping FF13Fix as d3d9.dll

DXVK users:

  • Install ReShade targeting Vulkan; enable it globally

Reporting issues

  • Please specify what game are you talking about, which mods are you using (dxvk?) post system specs, and post FF13Fix.log
  • Add a save file and steps to reproduce the issue if possible

Other notes

  • This is currently not compatible with GeDoSaTo.
  • I strongly recommend forcing anisotropic filtering on your GPU driver to improve the quality of the textures.
  • Using "Maximum Performance" power management in the GPU driver can also help keeping the frame rate smooth.