--- ray/src/rt/rvmain.c	2016/03/19 12:51:36	2.16
+++ ray/src/rt/rvmain.c	2023/01/24 21:54:49	2.18
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rvmain.c,v 2.16 2016/03/19 12:51:36 schorsch Exp $";
+static const char	RCSid[] = "$Id: rvmain.c,v 2.18 2023/01/24 21:54:49 greg Exp $";
 #endif
 /*
  *  rvmain.c - main for rview interactive viewer
@@ -55,6 +55,7 @@ static void onsig(int  signo);
 static void sigdie(int  signo, char  *msg);
 static void printdefaults(void);
 
+int
 main(int argc, char *argv[])
 {
 #define	 check(ol,al)		if (argv[i][ol] || \
@@ -82,7 +83,7 @@ main(int argc, char *argv[])
 	specthresh = .3;
 	specjitter = 1.;
 	maxdepth = 6;
-	minweight = 1e-2;
+	minweight = 1e-3;
 	ambacc = 0.3;
 	ambres = 32;
 	ambdiv = 256;