Bulk Export - SketchUp Models to .FBX

model = Sketchup.active_model

layers = model.layers

# Ensure all layers/tags are visible and nothing is hidden

layers.each do |layer|

  layer.visible = true

end

# Unhide all entities in the model

model.entities.each do |entity|

  entity.hidden = false if entity.respond_to?(:hidden=)

end

# Display a friendly greeting and information about the script

UI.messagebox(

  "Welcome to the 'SketchUp Tags Batch Exporter to .FBX Files'!\n\n" \

  "This tool will help you by exploding all groups and components " \

  "in your model and exporting each layer/tag as a separate .fbx file. " \

  "You'll be prompted to choose where to save the files.\n\n" \

  "Please ensure you save your work before continuing, as this process " \

  "is destructive and will modify your model structure.",

  MB_OK

)

# Prompt user for export directory

export_dir = UI.select_directory(title: "Select Export Directory for .fbx Files")

if export_dir.nil?

  puts "Export directory selection was canceled. Exiting script."

  return

end

# Check if layers are enumerable

if layers.respond_to?(:each)

  layers.each do |layer|

    # Create a new selection set for entities with the current layer

    selection = model.selection

    selection.clear

    # Add entities with the current layer to the selection

    model.entities.each do |entity|

      if entity.respond_to?(:layer) && entity.layer == layer

        selection.add(entity)

      end

    end

    next if selection.empty? # Skip if no entities are tagged with this layer

    # Explode all groups and components in the selection

    entities_to_explode = selection.to_a

    while !entities_to_explode.empty?

      new_entities = []

      entities_to_explode.each do |entity|

        if entity.is_a?(Sketchup::Group) || entity.is_a?(Sketchup::ComponentInstance)

          exploded = entity.explode

          new_entities.concat(exploded) if exploded

        end

      end

      entities_to_explode = new_entities

    end

    # Ensure the export path is valid and sanitize the layer name

    layer_name = layer.name.gsub(/[:"\/\\|?*]/, "_") # Sanitize layer name

    export_path = File.join(export_dir, "#{layer_name}.fbx")

    # FBX export options

    options = {

      :selectionset_only  => true,

      :triangulated_faces => true,

      :texture_maps       => true

    }

    # Export the selection to a .fbx file

    status = model.export(export_path, options)

    if status

      puts "Exported #{layer.name} successfully to #{export_path}!"

    else

      puts "Failed to export #{layer.name}."

    end

  end

  # Notify user that export has completed

  UI.messagebox(

    "Export completed successfully!\n\n" \

    "Reminder: Do not save the project to preserve your original groups " \

    "and components as they have been deleted.",

    MB_OK

  )

else

  puts "Unexpected type for layers: #{layers.class}. Expected an Enumerable collection of layers."

end

# Safely reset the model without saving changes

Sketchup.file_new