   You may specify the default parameters by modifying the file:
       povray.def
 which contains the parameters in the above format.  This filename contains a
 complete command line as though you had typed it in, and is processed before
 any options supplied on the command line are recognized.  You may put com-
 mands on more than one line in the 'povray.def' file.

    For example: POVRAY +Ibox.pov +Obox.tga +V +X +W320 +H200
       +Ibox.pov   = Use the scene file box.pov for input
       +Obox.tga   = Output the image as a Targa file to box.tga
       +V      = Show line numbers while rendering.
       +X      = Allow key press to abort render.
       +W320      = Set image width to 320 pixels
       +H200      = Set image height to 200 pixels

    Some of these parameters could have been put in the POVRAYOPT environment
 variable to save typing:
       SET POVRAYOPT = +V +X +W320 +H200

    Then you could just type:
       POVRAY +Ibox.pov +Obox.tga

    Or, you could create a file called POVRAY.DEF in the same directory as
 the scene file.  If POVRAY.DEF contains '+V +X +W320 +H200' then you could
 also type:
       POVRAY +Ibox.pov +Obox.tga

    With the same results.  You could also create an option file with a dif-
 ferent name and specify it on the command line.  For example: if QUICK.DEF
 contains '+V +X +W80 +H60' then you could also type:
       POVRAY +Ibox.pov +Obox.tga QUICK.DEF

    When POV-Ray sees QUICK.DEF, it will read it in just as if you typed it
 on the command line.

    The order that the options are read in for the IBM-PC version are as
 follows:
       POVRAYOPT environment variable.
       POVRAY.DEF in current directory or if not found, in library path.
       Command line and command line option files.

    For example:
       +V in POVRAY.DEF would override -V in POVRAYOPT
       +X on the command line would override -X in POVRAY.DEF

    Other computer's versions may read in the POVRAY.DEF file before the
 POVRAYOPT environment variable.  See the documentation on your version.
