--- ray/src/rt/source.c	1990/01/11 11:06:22	1.19
+++ ray/src/rt/source.c	1990/12/12 22:43:03	1.23
@@ -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)
@@ -395,7 +397,7 @@ char  *p;			/* data for f */
 	}
 					/* weighted hit rate */
 	hwt = hit2 / test2;
-#ifdef notdef
+#ifdef DEBUG
 	sprintf(errmsg, "%d tested, %d untested, %f hit rate\n",
 			sn, ncnts-sn, hwt);
 	eputs(errmsg);
@@ -408,8 +410,8 @@ char  *p;			/* data for f */
 		addcolor(r->rcol, srccnt[cntord[sn].sno].val);
 	}
 		
-	free(srccnt);
-	free(cntord);
+	free((char *)srccnt);
+	free((char *)cntord);
 }
 
 
@@ -453,6 +455,8 @@ register RAY  *r;
 				  m->oargs.farg[2]);
 						/* modify value */
 		multcolor(r->rcol, r->pcol);
+						/* assign distance */
+		r->rt = r->rot;
 	}
 }