--- ray/src/rt/source.c	1990/02/09 09:14:49	1.20
+++ ray/src/rt/source.c	1990/11/13 14:32:30	1.22
@@ -310,6 +310,8 @@ char  *p;			/* data for f */
 	double  prob, ourthresh, hwt, test2, hit2;
 	RAY  sr;
 
+	if (nsources <= 0)
+		return;
 	srccnt = (CONTRIB *)malloc(nsources*sizeof(CONTRIB));
 	cntord = (CNTPTR *)malloc(nsources*sizeof(CNTPTR));
 	if (srccnt == NULL || cntord == NULL)
@@ -453,6 +455,8 @@ register RAY  *r;
 				  m->oargs.farg[2]);
 						/* modify value */
 		multcolor(r->rcol, r->pcol);
+						/* assign distance */
+		r->rt = r->rot;
 	}
 }