--- ray/src/gen/mksource.c	2005/04/12 03:30:43	2.1
+++ ray/src/gen/mksource.c	2005/09/23 19:22:37	2.4
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: mksource.c,v 2.1 2005/04/12 03:30:43 greg Exp $";
+static const char RCSid[] = "$Id: mksource.c,v 2.4 2005/09/23 19:22:37 greg Exp $";
 #endif
 /*
  * Generate distant sources corresponding to the given environment map
@@ -7,6 +7,7 @@ static const char RCSid[] = "$Id: mksource.c,v 2.1 200
 
 #include "ray.h"
 #include "random.h"
+#include "resolu.h"
 
 #define NTRUNKBR	4		/* number of branches at trunk */
 #define NTRUNKVERT	4		/* number of vertices at trunk */
@@ -28,7 +29,7 @@ typedef struct lostlight {
 	COLOR		intens;		/* output times solid angle */
 } LOSTLIGHT;
 
-char	*progname;
+extern char	*progname;
 
 FVECT	scene_cent;		/* center of octree cube */
 RREAL	scene_rad;		/* radius to get outside cube from center */
@@ -207,6 +208,7 @@ geosample(int nsamps)
 	return(tree);
 memerr:
 	error(SYSTEM, "out of memory in geosample()");
+	return NULL; /* dummy return */
 }
 
 /* Compute leaf exponent histogram */
@@ -234,10 +236,10 @@ get_threshold(const TRITREE *tree)
 	memset((void *)exphisto, 0, sizeof(exphisto));
 	for (i = 0; i < NTRUNKBR; i++)
 		get_ehisto(&tree->kid[i], exphisto);
-						/* use 99th percentile */
+						/* use 98th percentile */
 	for (i = 0; i < 256; i++)
 		samptotal += exphisto[i];
-	samptotal /= 100; 
+	samptotal /= 50; 
 	for (i = 256; (--i > 0) & (samptotal > 0); )
 		samptotal -= exphisto[i];
 	return(ldexp(.75, i-COLXS));
@@ -385,7 +387,6 @@ mksources(TRITREE *samptree, double thresh, double max
 	LOSTLIGHT	*lostlightlist = NULL;
 	int		emax;
 	TRITREE		*startleaf;
-	COLOR		cval;
 	double		growstep;
 	FVECT		curcent;
 	double		currad;