--- ray/src/util/genklemsamp.pl	2009/06/19 18:42:06	2.5
+++ ray/src/util/genklemsamp.pl	2010/09/26 15:40:53	2.7
@@ -1,5 +1,5 @@
 #!/usr/bin/perl -w
-# RCSid $Id: genklemsamp.pl,v 2.5 2009/06/19 18:42:06 greg Exp $
+# RCSid $Id: genklemsamp.pl,v 2.7 2010/09/26 15:40:53 greg Exp $
 #
 # Sample Klems (full) directions impinging on surface(s)
 #
@@ -82,8 +82,9 @@ if ($#ARGV >= 0) {
 	push @vopts, ("-vp", $bcube[0]+$bcube[3]/2-$width/2*$vd[0],
 			$bcube[1]+$bcube[3]/2-$width/2*$vd[1],
 			$bcube[2]+$bcube[3]/2-$width/2*$vd[2]);
-	push @vopts, ("-vh", $width, "-vh", $height);
+	push @vopts, ("-vh", $width, "-vv", $height);
 	$vwset = `vwright @vopts V`;
+	$sca = sqrt($nsamp/($width*$height));
 	my $xres;
 	my $yres;
 	my $ntot = 0;
@@ -98,9 +99,9 @@ if ($#ARGV >= 0) {
 				q{-e 'nOK=sq(Vdx*$5+Vdy*$6+Vdz*$7)-.999' } .
 				"-if7 -of > $td/origins.flt";
 		$ntot = -s "$td/origins.flt";
-		$ntot /= 3*4;
+		$ntot /= 3*4;		# number of bytes per sample position
 		if ($ntot == 0) {
-			if ($sca < sqrt(199/($width*$height))) {
+			if ($nsamp < 200) {
 				$sca = sqrt(200/($width*$height));
 				redo;
 			}