--- ray/src/util/glare.h	1991/03/18 16:06:51	1.4
+++ ray/src/util/glare.h	1991/03/19 17:31:35	1.7
@@ -25,6 +25,8 @@ extern VIEW	leftview, rightview;	/* leftmost and right
 extern int	verbose;		/* verbose reporting */
 extern char	*progname;		/* global argv[0] */
 
+extern double	threshold;		/* threshold value for glare sources */
+
 extern int	sampdens;		/* sample density */
 extern ANGLE	glarang[];		/* glare calculation angles */
 extern int	nglarangs;
@@ -33,7 +35,7 @@ extern int	hsize;			/* horizontal size */
 extern int	hlim;			/* horizontal limit of central view */
 
 #define nglardirs	(2*nglarangs+1)
-#define vsize		sampdens
+#define vsize		(sampdens-1)
 #define h_theta(h)	(-(double)(h)/(double)sampdens)
 
 extern struct illum {
@@ -53,8 +55,8 @@ struct srcspan {
 
 extern struct source {
 	FVECT	dir;		/* source direction */
-	float	dom;		/* solid angle of source */
-	float	brt;		/* average source brightness */
+	double	dom;		/* solid angle of source */
+	double	brt;		/* average source brightness */
 	struct srcspan	*first;	/* first span for this source */
 	struct source	*next;	/* next source in list */
 } *donelist;			/* finished sources */