--- ray/src/rt/m_direct.c	1994/01/12 16:46:39	2.4
+++ ray/src/rt/m_direct.c	1995/09/07 12:35:21	2.6
@@ -1,4 +1,4 @@
-/* Copyright (c) 1991 Regents of the University of California */
+/* Copyright (c) 1994 Regents of the University of California */
 
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
@@ -85,15 +85,15 @@ int  n;
 				nsdir[j] = sp->sloc[j] - r->rop[j];
 			normalize(nsdir);
 		}
-		if (r->rox != NULL)
-			multv3(nsdir, nsdir, r->rox->b.xfm);
-		if (mf->b != &unitxf)
-			multv3(nsdir, nsdir, mf->b->xfm);
-	} else
-		nsdir[0] = nsdir[1] = nsdir[2] = 0.0;
-	varset("DxA", '=', nsdir[0]);
-	varset("DyA", '=', nsdir[1]);
-	varset("DzA", '=', nsdir[2]);
+		multv3(nsdir, nsdir, funcxf.xfm);
+		varset("DxA", '=', nsdir[0]/funcxf.sca);
+		varset("DyA", '=', nsdir[1]/funcxf.sca);
+		varset("DzA", '=', nsdir[2]/funcxf.sca);
+	} else {
+		varset("DxA", '=', 0.0);
+		varset("DyA", '=', 0.0);
+		varset("DzA", '=', 0.0);
+	}
 					/* compute coefficient */
 	errno = 0;
 	va = mf->ep + 4*n;
@@ -159,6 +159,7 @@ int  n;
 	olddot = DOT(tr.rdir, nv);
 	if (olddot <= FTINY && olddot >= -FTINY)
 		return(0);		/* old dir parallels plane */
+	tr.rmax = 0.0;
 	rayorigin(&tr, NULL, PRIMARY, 1.0);
 	if (!(*ofun[o->otype].funp)(o, &tr))
 		return(0);		/* no intersection! */