--- ray/src/rt/m_brdf.c	1991/05/08 08:27:50	1.7
+++ ray/src/rt/m_brdf.c	1991/06/13 13:58:16	1.9
@@ -237,7 +237,6 @@ register RAY  *r;
 	raytexture(r, m->omod);
 	nd.pdot = raynormal(nd.pnorm, r);	/* perturb normal */
 	multcolor(nd.mcolor, r->pcol);		/* modify material color */
-	r->rt = r->rot;				/* default ray length */
 	transtest = 0;
 						/* load auxiliary files */
 	if (m->otype == MAT_PDATA || m->otype == MAT_MDATA
@@ -286,8 +285,10 @@ register RAY  *r;
 					sr.rdir[i] = r->rdir[i] -
 							.75*r->pert[i];
 				normalize(sr.rdir);
-			} else
+			} else {
+				VCOPY(sr.rdir, r->rdir);
 				transtest = 2;
+			}
 			rayvalue(&sr);
 			multcolor(sr.rcol, ctmp);
 			addcolor(r->rcol, sr.rcol);