--- ray/src/rt/rcontrib.c	2018/11/13 19:58:33	2.34
+++ ray/src/rt/rcontrib.c	2020/07/20 15:54:29	2.36
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: rcontrib.c,v 2.34 2018/11/13 19:58:33 greg Exp $";
+static const char RCSid[] = "$Id: rcontrib.c,v 2.36 2020/07/20 15:54:29 greg Exp $";
 #endif
 /*
  * Accumulate ray contributions for a set of materials
@@ -179,6 +179,8 @@ quit(			/* quit program */
 {
 	if (nchild > 0)		/* close children if any */
 		end_children(code != 0);
+	else if (nchild < 0)
+		_exit(code);	/* avoid flush() in child */
 	exit(code);
 }
 
@@ -281,7 +283,7 @@ eval_irrad(FVECT org, FVECT dir)
 	thisray.rmax = 0.0;
 	rayorigin(&thisray, PRIMARY, NULL, NULL);
 					/* pretend we hit surface */
-	thisray.rxt = thisray.rmt = thisray.rot = 1e-5;
+	thisray.rxt = thisray.rot = 1e-5;
 	thisray.rod = 1.0;
 	VCOPY(thisray.ron, dir);
 	VSUM(thisray.rop, org, dir, 1e-4);