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
-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
<firstname.lastname@example.org>, for the Debian GNU/Linux system (but
may be used by others).
March 31, 2004