NAME

       exrenvmap - for creating OpenEXR environment maps.

SYNOPSIS

       exrenvmap [options] infile outfile

DESCRIPTION

       This  manual  page  documents briefly the exrenvmap command.  This manual page was written
       for the Debian distribution because the original program does not have a manual page.

       exrenvmap converts OpenEXR latitude-longitude environment maps into cube-face  environment
       maps or vice versa.

OPTIONS

       -o     produces a ONE_LEVEL output file (default)

       -m     produces a MIPMAP_LEVELS output file

       -c     the output file will be a cube-face environment map (default)

       -l     the output file will be a latitude-longitude environment map

       -w x   sets the width of the output image to x pixels (default is 256).  The height of the
              output image will be  x*6  pixels  for  a  cube-face  map,  or  x/2  pixels  for  a
              latitude-longitude map.

       -f r n sets  the antialiasing filter radius to r (default is 1.0) and the sampling rate to
              n by n (default is 5  by  5).   Increasing  r  makes  the  output  image  blurrier;
              decreasing r makes the image sharper but may cause aliasing.  Increasing n improves
              antialiasing, but generating the output image takes longer.

       -t x y sets the output file's tile size to x by y pixels (default is 64 by 64)

       -p t b if the input image is a latitude-longitude map, pad the image at the top and bottom
              with  t*h and b*h extra scan lines, where h is the height of the input image.  This
              is useful for images from 360-degree panoramic  scans  that  cover  less  than  180
              degrees vertically.

       -d     sets level size rounding to ROUND_DOWN (default)

       -u     sets level size rounding to ROUND_UP

       -z x   sets the data compression method to x (none/rle/zip/piz/pxr24, default is zip)

       -v     verbose mode

       -h     prints these options

AUTHOR

       This  manual  page  was  written  by  Andrew Lau <netsnipe@users.sourceforge.net>, for the
       Debian GNU/Linux system (but may be used by others).

                                          March 31, 2004                             EXRENVMAP(1)