--- ray/doc/man/man1/mksource.1	2005/04/12 20:03:12	1.2
+++ ray/doc/man/man1/mksource.1	2015/11/24 21:11:14	1.6
@@ -1,4 +1,4 @@
-.\" RCSid "$Id: mksource.1,v 1.2 2005/04/12 20:03:12 greg Exp $"
+.\" RCSid "$Id: mksource.1,v 1.6 2015/11/24 21:11:14 greg Exp $"
 .TH MKSOURCE 1 04/11/05 RADIANCE
 .SH NAME
 mksource - compute distant sources for RADIANCE image-based lighting
@@ -30,15 +30,15 @@ The
 .I \-d
 option may be used to specify the number of ray samples, which
 defaults to 262,000.
-Calculation time is roughly proportional to accuracy, and the
-default is fine enough to find sources the size of the sun
+Calculation time is roughly proportional to this setting, and the
+default is fine enough to resolve sources the size of the sun
 (half a degree) or larger.
 .PP
 The
 .I \-t
 option may be used to manually set the radiance threshold for
 sources, in watts/sr/meter^2.
-The default uses the top 1 percentile of the environment, which
+The default uses the top 2 percentile of the environment, which
 is usally a good value.
 .PP
 The
@@ -51,11 +51,11 @@ silently enforces a maximum of 180 degrees for this op
 If no input octree is specified, the standard input is read.
 .SH EXAMPLE
 To add sources with a maximum size of 20 degrees
-to the enviornment described in environ.oct:
+to the environment described in environ.oct:
 .IP "" .2i
-mksource -a 20 environ.oct > srcs.rad
+mksource \-a 20 environ.oct > srcs.rad
 .br
-oconv -i environ.oct srcs.rad > env+srcs.oct
+oconv \-i environ.oct srcs.rad > env+srcs.oct
 .SH AUTHOR
 Greg Ward
 .SH "SEE ALSO"