This fix is no longer necessary. Thanks to the ULTRAKILL team for including all video files as WEBMs. With this, it is now possible to get a near 100% accurate Mac/Linux port of ULTRAKILL.
Allows the Credits Museum to play a .webm file of the same name in place of the original .mp4 file for UNIX compatibility.
The video can't just be any .webm, it has to be encoded with libvpx/vp8 and libvorbis.
Copy/move NixVideoFix.dll to your BepInEx plugins directory.
Remove NixVideoFix.dll from your BepInEx plugins directory.
Place a WEBM with the same title as the original video (i.e. uk_museum_ingame.mp4 -> uk_museum_ingame.webm) into ULTRAKILL_Data/StreamingAssets/Videos/ (Linux) / ULTRAKILL.app/Contents/Resources/StreamingAssets/Videos (MacOS). Ensure it is encoded with vp8 video, and libvorbis audio.
You can do this with ffmpeg like so (from within the Videos folder):
ffmpeg -i uk_museum_ingame.mp4 -c:v libvpx -crf 10 -b:v 8M -c:a libvorbis uk_museum_ingame.webm
You can install ffmpeg using most Linux distributions' package managers, and/or Brew on MacOS.
Note: I don't use Visual Studio, so I have no clue how to compile this on Windows, though using msbuild should be possible. As for MacOS, the file structure is different, but by editing the .csproj file to have correct file names, you should be able to build it with msbuild, just like Linux, assuming you have Mono installed.
- A copy of ULTRAKILL with BepInEx 5.4.21 installed.
- A stripped copy of
Assembly-CSharp.dllfrom your copy of ULTRAKILL, located inULTRAKILL_Data/Managed/Stripped. - (Linux) Mono /
msbuild.
- Clone the repo with git. (
git clone https://github.com/coatlessali/UltraNixVideoFix.git) - Enter the directory. (
cd UltraNixVideoFix) - Build project, with
ULTRAKILLPathset to the path to your copy of ULTRAKILL. (msbuild NixVideoFix.csproj -p:ULTRAKILLPath=/path/to/your/ULTRAKILL/) - Copy
bin/Debug/NixVideoFix.dllto your BepInEx folder, ifmsbuilddoesn't do it for you.