--- ray/src/rt/otspecial.h	2003/02/25 02:47:23	2.3
+++ ray/src/rt/otspecial.h	2019/04/18 22:37:36	2.10
@@ -1,12 +1,32 @@
-/* RCSid $Id: otspecial.h,v 2.3 2003/02/25 02:47:23 greg Exp $ */
+/* RCSid $Id: otspecial.h,v 2.10 2019/04/18 22:37:36 greg Exp $ */
 /*
  * Special type flags for objects used in rendering.
  * Depends on definitions in otypes.h
  */
+#ifndef _RAD_OTSPECIAL_H_
+#define _RAD_OTSPECIAL_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-#include "copyright.h"
+		/* flag for nominally transparent materials */
+#define  T_TRANSP	T_SP1
 
-		/* 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  istransp(t)	(ofun[t].flags & T_TRANSP)
+
+#define  isopaque(t)    (ofun[t].flags & T_OPAQUE)
+
+		/* test if we have a BSDF proxy surface */
+#define isBSDFproxy(m)	(((m)->otype == MAT_BSDF) & ((m)->oargs.nsargs > 0) &&\
+				strcmp((m)->oargs.sarg[0], "0"))
+
+		/* defined in initotypes.c */
+extern OBJREC   *findmaterial(OBJREC *o);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_OTSPECIAL_H_ */