--- ray/doc/man/man1/rcontrib.1	2023/12/12 16:31:45	1.23
+++ ray/doc/man/man1/rcontrib.1	2025/03/27 01:26:55	1.25
@@ -1,4 +1,4 @@
-.\" RCSid "$Id: rcontrib.1,v 1.23 2023/12/12 16:31:45 greg Exp $"
+.\" RCSid "$Id: rcontrib.1,v 1.25 2025/03/27 01:26:55 greg Exp $"
 .TH RCONTRIB 1 5/25/05 RADIANCE
 .SH NAME
 rcontrib - compute contribution coefficients in a RADIANCE scene
@@ -208,7 +208,11 @@ and
 .I \-o
 options to the left of each
 .I \-m
-setting are the ones used for that modifier.
+name are the ones used for that modifier.
+Any
+.I \-cs
+option changing the number of spectral color
+samples must appear before the first modifier.
 The ordering of other options is unimportant, except for
 .I \-x
 and
@@ -362,7 +366,7 @@ is detected.
 .SH AUTHOR
 Greg Ward
 .SH "SEE ALSO"
-cnt(1), genklemsamp(1), getinfo(1), mkpmap(1), pcomb(1), pfilt(1), 
-ra_rgbe(1), rcalc(1), rcomb(1), rfluxmtx(1), rmtxop(1), rpict(1),
+cnt(1), dctimestep(1), genklemsamp(1), getinfo(1), mkpmap(1), pcomb(1), pfilt(1), 
+pvsum(1), ra_rgbe(1), rcalc(1), rcomb(1), rfluxmtx(1), rmtxop(1), rpict(1),
 rsensor(1), rtrace(1), total(1), vwrays(1), ximage(1)