--- ray/doc/man/man1/genblinds.1	2004/01/01 19:31:44	1.3
+++ ray/doc/man/man1/genblinds.1	2007/09/04 17:36:40	1.5
@@ -1,4 +1,4 @@
-.\" RCSid "$Id: genblinds.1,v 1.3 2004/01/01 19:31:44 greg Exp $"
+.\" RCSid "$Id: genblinds.1,v 1.5 2007/09/04 17:36:40 greg Exp $"
 .TH GENBLINDS 1 10/10/94 RADIANCE
 .SH NAME
 genblinds - generate a RADIANCE description of venetian blinds
@@ -40,11 +40,11 @@ with the
 .I "+/-r"
 option.
 If given as
-.I -r,
-The curvature is downward (which is the usual configuration).
-If the option is given as
 .I +r,
-then the curvature is upward.
+The curvature is upward (which is the usual configuration).
+If the option is given as
+.I -r,
+then the curvature is downward.
 The radius indicates how far from each slat its effective
 cylindrical center resides.
 Each slat will be broken into as many polygons as is necessary to
@@ -53,7 +53,7 @@ keep the delta changes in angle less than 10 degrees.
 .SH EXAMPLE
 To produce a curved set of blinds with 15 slats:
 .IP "" .2i
-genblinds white blind 1 46 88 118 15 -r 1 > blinds.rad
+genblinds white blind 1 46 88 118 15 \-r 1 > blinds.rad
 .SH AUTHOR
 Jean-Louis Scartezzini and Greg Ward
 .SH "SEE ALSO"