--- ray/src/cv/pabopto2bsdf.c	2014/01/31 00:47:10	2.12
+++ ray/src/cv/pabopto2bsdf.c	2014/02/17 21:56:22	2.13
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: pabopto2bsdf.c,v 2.12 2014/01/31 00:47:10 greg Exp $";
+static const char RCSid[] = "$Id: pabopto2bsdf.c,v 2.13 2014/02/17 21:56:22 greg Exp $";
 #endif
 /*
  * Load measured BSDF data in PAB-Opto format.
@@ -219,7 +219,7 @@ main(int argc, char *argv[])
 #ifdef DEBUG
 	fprintf(stderr, "Minimum BSDF = %.4f\n", bsdf_min);
 #endif
-	min_log = log(bsdf_min*.5);
+	min_log = log(bsdf_min*.5 + 1e-5);
 #if 1						/* produce spheres at meas. */
 	puts("void plastic yellow\n0\n0\n5 .6 .4 .01 .04 .08\n");
 	n = 0;