Man Linux: Main Page and Category List


       exrenvmap - for creating OpenEXR environment maps.


       exrenvmap [options] infile outfile


       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.


       -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

       -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


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

                                March 31, 2004