--- ray/src/rt/m_direct.c	1995/09/07 12:35:21	2.6
+++ ray/src/rt/m_direct.c	2003/02/25 02:47:22	2.9
@@ -1,14 +1,13 @@
-/* Copyright (c) 1994 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: m_direct.c,v 2.9 2003/02/25 02:47:22 greg Exp $";
 #endif
-
 /*
  * Routines for light-redirecting materials and
  *   their associated virtual light sources
  */
 
+#include "copyright.h"
+
 #include  "ray.h"
 
 #include  "otypes.h"
@@ -32,7 +31,8 @@ static char SCCSid[] = "$SunId$ LBL";
  */
 
 
-int  dir_proj();
+static int  dir_proj();
+
 VSMATERIAL  direct1_vs = {dir_proj, 1};
 VSMATERIAL  direct2_vs = {dir_proj, 2};
 
@@ -41,6 +41,7 @@ VSMATERIAL  direct2_vs = {dir_proj, 2};
 				getfunc(m, 8, 0xff, 1) )
 
 
+int
 m_direct(m, r)			/* shade redirected ray */
 register OBJREC  *m;
 register RAY  *r;
@@ -60,6 +61,7 @@ register RAY  *r;
 }
 
 
+int
 redirect(m, r, n)		/* compute n'th ray redirection */
 OBJREC  *m;
 RAY  *r;
@@ -120,6 +122,8 @@ int  n;
 	rayvalue(&nr);
 	scalecolor(nr.rcol, coef);
 	addcolor(r->rcol, nr.rcol);
+	if (r->ro != NULL && isflat(r->ro->otype))
+		r->rt = r->rot + nr.rt;
 	return(1);
 computerr:
 	objerror(m, WARNING, "compute error");
@@ -127,6 +131,7 @@ computerr:
 }
 
 
+static int
 dir_proj(pm, o, s, n)		/* compute a director's projection */
 MAT4  pm;
 OBJREC  *o;