def getNormalAverage(normals):
 if (len(normals) < 2):
  return normals[0]
 return (normals[0] + normals[1]).getNormalized()

def getNormalAverage ( normals ) : if ( len ( normals ) < 2 ) : return normals [ 0 ] return ( normals [ 0 ] + normals [ 1 ] ) . getNormalized ( )
get normal .