--- ray/src/rt/source.h	1991/11/12 17:10:17	2.1
+++ 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 */
@@ -127,7 +127,7 @@ extern double  shadcert;		/* shadow testing certainty 
 extern double  srcsizerat;		/* max. ratio of source size/dist. */
 extern int  directrelay;		/* maximum number of source relays */
 extern int  vspretest;			/* virtual source pretest density */
-extern int  directinvis;		/* sources invisible? */
+extern int  directvis;			/* sources visible? */
 
 #define  getplaneq(c,o)		(*sfun[(o)->otype].of->getpleq)(c,o)
 #define  getmaxdisk(c,o)	(*sfun[(o)->otype].of->getdisk)(c,o)