def default_output_mask(file_out, texture=True, vert_normals=True, vert_colors=False,<EOL>face_colors=False, ml_version=ML_VERSION):
vn = '<STR_LIT>'<EOL>wt = '<STR_LIT>'<EOL>vc = '<STR_LIT>'<EOL>fc = '<STR_LIT>'<EOL>if ml_version < '<STR_LIT>':<EOL><INDENT>om = '<STR_LIT>'<EOL><DEDENT>else:<EOL><INDENT>om = '<STR_LIT>'<EOL><DEDENT>fext = os.path.splitext(file_out)[<NUM_LIT:1>][<NUM_LIT:1>:].strip().lower()<EOL>if fext in ['<STR_LIT>', '<STR_LIT>', '<STR_LIT>']:<EOL><INDENT>om = '<STR_LIT>'<EOL>texture = False<EOL>vert_normals = False<EOL>vert_colors = False<EOL>face_colors = False<EOL>
Set default output mask options based on file extension
Note: v1.34BETA changed -om switch to -m
Possible options (not all options are available for every format):
 vc -> vertex colors
 vf -> vertex flags
 vq -> vertex quality
 vn -> vertex normals
 vt -> vertex texture coords
 fc -> face colors
 ff -> face flags
 fq -> face quality
 fn -> face normals
 wc -> wedge colors
 wn -> wedge normals
 wt -> wedge texture coords