--- ray/src/rt/source.h	1992/11/19 20:26:01	2.2
+++ ray/src/rt/source.h	1995/11/07 12:40:36	2.4
@@ -1,4 +1,4 @@
-/* Copyright (c) 1986 Regents of the University of California */
+/* Copyright (c) 1995 Regents of the University of California */
 
 /* SCCSid "$SunId$ LBL" */
 
@@ -22,7 +22,7 @@
 typedef struct {
 	FVECT  aim;		/* aim direction or center */
 	float  siz;		/* output solid angle or area */
-	float  flen;		/* focal length */
+	float  flen;		/* focal length (negative if distant source) */
 } SPOT;			/* spotlight */
 
 typedef struct {
@@ -36,10 +36,10 @@ typedef struct {
 		SPOT  *s;		/* spot */
 	} sl;			/* localized source information */
 	union {
-		int  success;		/* successes - AIMREQT*failures */
+		long  success;		/* successes - AIMREQT*failures */
 		struct {
 			short  pn;		/* projection number */
-			short  sn;		/* next source to aim for */
+			int  sn;		/* next source to aim for */
 		}  sv;			/* virtual source */
 	} sa;			/* source aiming information */
 	long  ntests, nhits;	/* shadow tests and hits */