--- ray/src/rt/m_brdf.c	1993/08/12 17:50:40	2.7
+++ ray/src/rt/m_brdf.c	1993/11/18 09:43:04	2.9
@@ -197,7 +197,6 @@ register RAY  *r;
 	double  transtest, transdist;
 	int  hasrefl, hastrans;
 	COLOR  ctmp;
-	double  dtmp;
 	register MFUNC  *mf;
 	register int  i;
 						/* check arguments */
@@ -242,6 +241,7 @@ register RAY  *r;
 						/* compute transmitted ray */
 	setbrdfunc(&nd);
 	transtest = 0;
+	transdist = r->rot;
 	errno = 0;
 	setcolor(ctmp, evalue(mf->ep[3]),
 			evalue(mf->ep[4]),