--- ray/src/rt/m_brdf.c	1991/08/08 11:30:01	1.15
+++ ray/src/rt/m_brdf.c	1991/08/12 08:20:53	1.16
@@ -269,7 +269,8 @@ register RAY  *r;
 			objerror(m, WARNING, "compute error");
 		else if ((tspect = bright(ctmp)) > FTINY &&
 				rayorigin(&sr, r, TRANS, tspect) == 0) {
-			if (DOT(r->pert,r->pert) > FTINY*FTINY) {
+			if (!(r->crtype & SHADOW) &&
+					DOT(r->pert,r->pert) > FTINY*FTINY) {
 				for (i = 0; i < 3; i++)	/* perturb direction */
 					sr.rdir[i] = r->rdir[i] -
 							.75*r->pert[i];