--- ray/src/util/glare.h	1991/03/19 11:11:18	1.6
+++ ray/src/util/glare.h	1991/03/20 11:56:42	1.8
@@ -18,12 +18,19 @@
 
 #define SEPS		2		/* sources this close ==> contig. */
 
+#define SAMIN		.005		/* minimum solid angle for source */
+#define MAXBUDDY	(4.*sqrt(SAMIN/PI))	/* max separation for pairing */
+
+#define TOOSMALL(s)	((s)->brt*(s)->dom < threshold*SAMIN)
+
 extern VIEW	ourview;		/* our view */
 extern VIEW	pictview;		/* picture view */
 extern VIEW	leftview, rightview;	/* leftmost and rightmost views */
 
 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 */