--- ray/src/rt/source.c	1990/02/09 09:14:49	1.20
+++ ray/src/rt/source.c	1990/03/27 11:40:13	1.21
@@ -453,6 +453,8 @@ register RAY  *r;
 				  m->oargs.farg[2]);
 						/* modify value */
 		multcolor(r->rcol, r->pcol);
+						/* assign distance */
+		r->rt = r->rot;
 	}
 }