--- ray/src/gen/mkillum.c	1992/03/25 10:55:03	2.3
+++ ray/src/gen/mkillum.c	1993/09/21 17:09:59	2.6
@@ -26,11 +26,11 @@ static char SCCSid[] = "$SunId$ LBL";
 #define  S_ALL		3		/* select all */
 
 				/* rtrace command and defaults */
-char  *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-di+",
+char  *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-dv-",
 		"-ab", "2", "-ad", "256", "-as", "128", "-aa", ".15", };
 int  rtargc = 14;
 				/* overriding rtrace options */
-char  *myrtopts[] = { "-I-", "-i-", "-ov", "-h-", "-fff", NULL };
+char  *myrtopts[] = { "-I-", "-i-", "-ov", "-h-", "-fff", "-y", "0", NULL };
 
 struct rtproc	rt;		/* our rtrace process */
 
@@ -76,11 +76,27 @@ char	*argv[];
 	gargv = argv;
 				/* set up rtrace command */
 	for (i = 1; i < argc; i++) {
-		if (argv[i][0] == '<' && !argv[i][1])
+		if (argv[i][0] == '<' && argv[i][1] == '\0')
 			break;
 		rtargv[rtargc++] = argv[i];
 		if (argv[i][0] == '-' && argv[i][1] == 'w')
-			warnings = !warnings;
+			switch (argv[i][2]) {
+			case '\0':
+				warnings = !warnings;
+				break;
+			case '+':
+			case 'T': case 't':
+			case 'Y': case 'y':
+			case '1':
+				warnings = 1;
+				break;
+			case '-':
+			case 'F': case 'f':
+			case 'N': case 'n':
+			case '0':
+				warnings = 0;
+				break;
+			}
 	}
 	gargc = i;
 	rtargc--;