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)