--- ray/src/rt/otspecial.h	2003/06/27 06:53:22	2.5
+++ ray/src/rt/otspecial.h	2004/06/22 13:40:54	2.7
@@ -1,4 +1,4 @@
-/* RCSid $Id: otspecial.h,v 2.5 2003/06/27 06:53:22 greg Exp $ */
+/* RCSid $Id: otspecial.h,v 2.7 2004/06/22 13:40:54 greg Exp $ */
 /*
  * Special type flags for objects used in rendering.
  * Depends on definitions in otypes.h
@@ -12,7 +12,12 @@ extern "C" {
 		/* flag for materials to ignore during irradiance comp. */
 #define  T_IRR_IGN	T_SP1
 
+		/* flag for completely opaque materials */
+#define  T_OPAQUE       T_SP2
+
 #define  irr_ignore(t)	(ofun[t].flags & T_IRR_IGN)
+
+#define  isopaque(t)    (ofun[t].flags & T_OPAQUE)
 
 
 #ifdef __cplusplus