--- ray/src/util/rad.c	1995/12/12 15:13:32	2.49
+++ ray/src/util/rad.c	1996/02/14 16:34:05	2.52
@@ -535,8 +535,8 @@ ambval()				/* compute ambient value */
 {
 	if (vdef(EXPOSURE)) {
 		if (vval(EXPOSURE)[0] == '+' || vval(EXPOSURE)[0] == '-')
-			return(.5/pow(2.,atof(vval(EXPOSURE))));
-		return(.5/atof(vval(EXPOSURE)));
+			return(.5/pow(2.,vflt(EXPOSURE)));
+		return(.5/vflt(EXPOSURE));
 	}
 	if (vlet(ZONE) == 'E')
 		return(10.);
@@ -612,10 +612,10 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .4 -ad 64");
+		op = addarg(op, "-aw 128 -aa .4 -ad 64");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .3 -ad 128");
+		op = addarg(op, "-aw 1024 -aa .3 -ad 128");
 		break;
 	case HIGH:
 		op = addarg(op, "-aa .25 -ad 256");
@@ -691,10 +691,10 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .25 -ad 196 -as 0");
+		op = addarg(op, "-aw 128 -aa .25 -ad 196 -as 0");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .2 -ad 400 -as 64");
+		op = addarg(op, "-aw 1024 -aa .2 -ad 400 -as 64");
 		break;
 	case HIGH:
 		op = addarg(op, "-aa .15 -ad 768 -as 196");
@@ -767,10 +767,10 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .15 -ad 256 -as 0");
+		op = addarg(op, "-aw 128 -aa .15 -ad 256 -as 0");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .125 -ad 512 -as 256");
+		op = addarg(op, "-aw 1024 -aa .125 -ad 512 -as 256");
 		break;
 	case HIGH:
 		op = addarg(op, "-aa .08 -ad 1024 -as 512");
@@ -995,14 +995,14 @@ char	*vn;		/* returned view name */
 		}
 						/* view number? */
 		if (isint(viewselect))
-			return(specview(nvalue(vv+VIEW, atoi(viewselect)-1)));
+			return(specview(nvalue(VIEW, atoi(viewselect)-1)));
 						/* check list */
-		while ((mv = nvalue(vv+VIEW, n++)) != NULL)
+		while ((mv = nvalue(VIEW, n++)) != NULL)
 			if (matchword(viewselect, mv))
 				return(specview(mv));
 		return(specview(viewselect));	/* standard view? */
 	}
-	mv = nvalue(vv+VIEW, n);		/* use view n */
+	mv = nvalue(VIEW, n);		/* use view n */
 	if (vn != NULL & mv != NULL) {
 		register char	*mv2 = mv;
 		if (*mv2 != '-')