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NswNifOpt

Nintendo Switch Skyrim NIF Optimizer

Copyrights

  1. NIF lib from https://github.com/ousnius/BodySlide-and-Outfit-Studio
  2. Command line parser from https://github.com/jarro2783/cxxopts

Build (Visual Studio Code)

  1. Install https://code.visualstudio.com
  2. Install https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2017
  3. Install https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools (https://github.com/microsoft/vscode-cpptools)
  4. Open Visual Studio Developer Command Prompt
  5. Navigate to Project folder and run code .
  6. Adjust .vscode/.c_cpp_properties.json with correct CL path
  7. Build (Ctrl-Shift-B)

Usage

Usage:
  nswnifopt.exe [OPTION...]

      --remove-editor-marker  remove Editor Marker
      --pretty-sort-blocks    pretty sort blocks
      --trim-textures-path    trim textures path
      --mirror-shape-x        mirror shape over x axis
      --mirror-shape-y        mirror shape over y axis
      --mirror-shape-z        mirror shape over z axis
      --rotate-shape-x arg    rotate shape over x axis by ARG angle
      --rotate-shape-y arg    rotate shape over y axis by ARG angle
      --rotate-shape-z arg    rotate shape over z axis by ARG angle
      --scale-shape-x arg     scale shape on x axis by factor ARG
      --scale-shape-y arg     scale shape on y axis by factor ARG
      --scale-shape-z arg     scale shape on z axis by factor ARG
      --offset-shape-x arg    offset shape over x axis by ARG distance
      --offset-shape-y arg    offset shape over y axis by ARG distance
      --offset-shape-z arg    offset shape over z axis by ARG distance
      --optimize-for-sse      optimize NIF for SSE (modifiers below)
      --is-head-part          ONLY for parts like head, ear, mouth and hair
      --no-remove-parallax    don't remove parallax flags and meshes
      --no-calc-bounds        don't calculate new bounds spheres for meshes
      --force-optimization    force optimization if NIF on SSE format
  -i, --input arg             input file
  -o, --output arg            ouptput file

Automation

Create a batch file with this content (replace %% with % if copying and pasting directly to command prompt):

for /d %%F in ("<SOME_FOLDER_WITH_NIFS_IN_SUBFOLDERS>") go (
  nswnifopt.exe -i "%%F" -o "%%F" <WHATEVER-MODIFICATION-PARAMETERS-YOU-FEEL-LIKE>
)

Examples

  • Optimize head part mesh

    nswnifopt.exe -i head.nif -o head.nif --optimize-for-sse -is-head-part

  • Optimize regular mesh

    nswnifopt.exe -i standard.nif -o standard.nif --optimize-for-sse

  • Apply Skyrim SSE standards to textures paths

    nswnifopt.exe -i standard.nif -o standard.nif --trim-textures-path

  • Remove Editor Markers from Meshes as they create purple artifacts

    nswnifopt.exe -i standard.nif -o standard.nif --remove-editor-marker

  • You can mix and match commands

    nswnifopt.exe -i standard.nif -o standard.nif --remove-editor-marker --optimize-for-sse --trim-textures-path