--- ray/src/cv/bsdfmesh.c	2014/03/08 21:06:14	2.20
+++ ray/src/cv/bsdfmesh.c	2014/03/12 00:39:43	2.23
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: bsdfmesh.c,v 2.20 2014/03/08 21:06:14 greg Exp $";
+static const char RCSid[] = "$Id: bsdfmesh.c,v 2.23 2014/03/12 00:39:43 greg Exp $";
 #endif
 /*
  * Create BSDF advection mesh from radial basis functions.
@@ -20,7 +20,7 @@ static const char RCSid[] = "$Id: bsdfmesh.c,v 2.20 20
 #include "bsdfrep.h"
 
 #ifndef NEIGH_FACT2
-#define NEIGH_FACT2	15.	/* empirical neighborhood distance weight */
+#define NEIGH_FACT2	0.1	/* empirical neighborhood distance weight */
 #endif
 				/* number of processes to run */
 int			nprocs = 1;
@@ -562,6 +562,7 @@ check_normal_incidence(void)
 	double			bestd;
 	int			n;
 
+
 	if (dsf_list == NULL)
 		return;				/* XXX should be error? */
 	near_rbf = dsf_list;
@@ -606,9 +607,10 @@ check_normal_incidence(void)
 	memcpy(mir_rbf, near_rbf, n);
 	mir_rbf->ord = near_rbf->ord - 1;	/* not used, I think */
 	mir_rbf->next = NULL;
+	mir_rbf->ejl = NULL;
 	rev_rbf_symmetry(mir_rbf, MIRROR_X|MIRROR_Y);
 	nprocs = 1;				/* compute migration matrix */
-	if (mig_list != create_migration(mir_rbf, near_rbf))
+	if (create_migration(mir_rbf, near_rbf) == NULL)
 		exit(1);			/* XXX should never happen! */
 						/* interpolate normal dist. */
 	rbf = e_advect_rbf(mig_list, norm_vec, 2*near_rbf->nrbf);