return {
  summary = 'Different winding directions.',
  description = [[
    Whether the points on triangles are specified in a clockwise or counterclockwise order.
  ]],
  values = {
    {
      name = 'clockwise',
      description = 'Triangle vertices are specified in a clockwise order.',
    },
    {
      name = 'counterclockwise',
      description = 'Triangle vertices are specified in a counterclockwise order.',
    }
  }
}
