--- ray/src/util/genBSDF.pl	2015/04/01 01:38:35	2.56
+++ ray/src/util/genBSDF.pl	2015/05/29 07:22:33	2.58
@@ -1,5 +1,5 @@
 #!/usr/bin/perl -w
-# RCSid $Id: genBSDF.pl,v 2.56 2015/04/01 01:38:35 greg Exp $
+# RCSid $Id: genBSDF.pl,v 2.58 2015/05/29 07:22:33 greg Exp $
 #
 # Compute BSDF based on geometry and material description
 #
@@ -9,7 +9,7 @@ use strict;
 my $windoz = ($^O eq "MSWin32" or $^O eq "MSWin64");
 use File::Temp qw/ :mktemp  /;
 sub userror {
-	print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-W][-t{3|4} Nlog2][-r \"ropts\"][-f \"x=string;y=string\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}C][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n";
+	print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-W][-t{3|4} Nlog2][-r \"ropts\"][-s \"x=string;y=string\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}C][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n";
 	exit 1;
 }
 my ($td,$radscn,$mgfscn,$octree,$fsender,$bsender,$receivers,$facedat,$behinddat,$rmtmp);
@@ -225,6 +225,7 @@ if ( $tensortree ) {
 my $old_fh = select(STDOUT);
 $| = 1;
 select($old_fh);
+print "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
 print "<!-- Created by: genBSDF @savedARGV -->\n";
 # print STDERR "Running: $wrapper\n";
 system $wrapper;