--- ray/src/util/glare.h	1991/04/19 17:41:02	1.15
+++ ray/src/util/glare.h	1991/04/30 16:24:08	1.17
@@ -13,7 +13,7 @@
 
 #define GLAREBR		7.0		/* glare source is this * avg. lum. */
 
-#define SAMPDENS	50		/* default samples per unit in image */
+#define SAMPDENS	75		/* default samples per unit in image */
 #define TSAMPSTEP	10		/* sample step to compute threshold */
 
 #define SEPS		1		/* sources this close ==> contig. */
@@ -23,6 +23,9 @@
 
 #define TOOSMALL(s)	((s)->brt*(s)->dom < threshold*SAMIN)
 
+#define SABIG		.025		/* solid angle of splittable source */
+#define LCORR		.8		/* linearity of splittable source */
+
 extern VIEW	ourview;		/* our view */
 extern VIEW	pictview;		/* picture view */
 extern VIEW	leftview, rightview;	/* leftmost and rightmost views */
@@ -40,9 +43,9 @@ extern int	hsize;			/* horizontal size */
 
 #define nglardirs	(2*nglarangs+1)
 #define vsize		(sampdens-1)
-#define hscale(v)	sqrt(1.-(double)((v)*(v)/(sampdens*sampdens)))
-#define hlim(v)		(int)(maxtheta*sampdens*hscale(v))
-#define h_theta(h,v)	(-(h)/(sampdens*hscale(v)))
+#define hscale(v)	sqrt((double)(sampdens*sampdens - (v)*(v)))
+#define hlim(v)		(int)(maxtheta*hscale(v))
+#define h_theta(h,v)	(-(h)/hscale(v))
 
 extern struct illum {
 	float	theta;		/* glare direction */