NAME

       lookamb - examine ambient file values

SYNOPSIS

       lookamb [ -d ][ -r ][ -h ] [ ambfile ]

DESCRIPTION

       Lookamb examines an ambient file produced by rpict(1), rtrace(1), or rvu(1).  The default mode prints the
       position, direction, level, weight, radius, value, position gradient  and  direction  gradient  for  each
       stored  ambient value preceded by a label appropriate for human interpretation.  The -d option prints the
       same quantities in 18 columns without any expanatory text, and is more appropriate as  input  to  another
       program.

       The  -r option performs the reverse conversion, taking the output of lookamb and reproducing the original
       ambient file on the standard output.

       The -h option causes lookamb not to print out the header information on the output, or not to  expect  it
       on the input with the -r option.

       If no file is given, lookamb reads from the standard input.

NOTES

       Before  release  2.2  of  Radiance,  ambient  files were in a machine-dependent format.  Since that is no
       longer the case, ambient files can now be moved freely between machines without any  conversions.   Thus,
       the only reason to use lookamb now is to examine the contents of an ambient file.

AUTHOR

       Greg Ward

SEE ALSO

       getinfo(1), oconv(1), pfilt(1), pinterp(1), rpict(1), rtrace(1), rvu(1)