static void FindFbxTextures()

in src/fbx/Fbx2Raw.cpp [1047:1089]
34 lines of code
7 McCabe index (conditional complexity)

static void FindFbxTextures(
    FbxScene* pScene,
    const std::string& fbxFileName,
    const std::set<std::string>& extensions,
    std::map<const FbxTexture*, FbxString>& textureLocations) {
  // figure out what folder the FBX file is in,
  const auto& fbxFolder = FileUtils::getFolder(fbxFileName);
  std::vector<std::string> folders{
      // first search filename.fbm folder which the SDK itself expands embedded textures into,
      fbxFolder + "/" + FileUtils::GetFileBase(fbxFileName) + ".fbm", // filename.fbm
      // then the FBX folder itself,
      fbxFolder,
      // then finally our working directory
      FileUtils::GetCurrentFolder(),
  };

  // List the contents of each of these folders (if they exist)
  std::vector<std::vector<std::string>> folderContents;
  for (const auto& folder : folders) {
    if (FileUtils::FolderExists(folder)) {
      folderContents.push_back(FileUtils::ListFolderFiles(folder, extensions));
    } else {
      folderContents.push_back({});
    }
  }

  // Try to match the FBX texture names with the actual files on disk.
  for (int i = 0; i < pScene->GetTextureCount(); i++) {
    const FbxFileTexture* pFileTexture = FbxCast<FbxFileTexture>(pScene->GetTexture(i));
    if (pFileTexture != nullptr) {
      const std::string fileLocation =
          FindFbxTexture(pFileTexture->GetFileName(), folders, folderContents);
      // always extend the mapping (even for files we didn't find)
      textureLocations.emplace(pFileTexture, fileLocation.c_str());
      if (fileLocation.empty()) {
        fmt::printf(
            "Warning: could not find a image file for texture: %s.\n", pFileTexture->GetName());
      } else if (verboseOutput) {
        fmt::printf("Found texture '%s' at: %s\n", pFileTexture->GetName(), fileLocation);
      }
    }
  }
}