NAME

       pkgBSDF - package BSDFs provided as XML for Radiance

SYNOPSIS

       pkgBSDF [ -i ][ -s ] bsdf.xml ..

DESCRIPTION

       PkgBSDF  takes  one  or  more  XML  files,  each  describing  the bidirectional scattering
       distribution function of a surface or geometric system, and packages  them  into  RADIANCE
       scene  descriptions.  If the input file(s) do not begin with a '.' or '/', the directories
       in the RAYPATH environment variable will be searched.  One rectangle is produced for  each
       BSDF  that  has  no detail geometry and/or no rear-side reflectance distribution.  If both
       front and back reflectance distributions  are  present  with  detail  geometry,  then  two
       rectangles  will be used to sandwich the geometry extracted from the BSDF file.  The front
       surface will always be centered just in  front  of  the  origin  facing  the  positive  Z-
       direction,  with  "up"  in  the  positive Y-direction.  The back surface, if present, will
       parallel the front surface at a distance slightly greater than the BSDF system  thickness.
       Scene units will always be in meters.

       The  -i  option causes pkgBSDF to produce frozen octree instances for any detail geometry,
       which may reduce memory requirements in scenes with many references to  the  same  complex
       BSDF object.

       Normally,  pkgBSDF  produces  one  RADIANCE  scene  file for each XML input, replacing the
       required '.xml' suffix with '.rad' in  the  same  directory.   The  -s  option  sends  the
       RADIANCE  scene  description  to the standard output rather than writing it to a file, but
       only works for a single XML input.  Any instance octree is still written  out  to  a  file
       generated by replacing the '.xml' suffix with '.oct' in the same directory.

EXAMPLE

       Package  all  the  XML  files  in the current directory as Radiance scene files, employing
       frozen octree instances for any detail geometry:

         pkgBSDF -i *.xml

AUTHOR

       Greg Ward

SEE ALSO

       genBSDF(1), oconv(1), xform(1)