--- ray/src/rt/ambient.c	2014/05/09 23:08:50	2.88
+++ ray/src/rt/ambient.c	2014/05/11 19:03:37	2.89
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: ambient.c,v 2.88 2014/05/09 23:08:50 greg Exp $";
+static const char	RCSid[] = "$Id: ambient.c,v 2.89 2014/05/11 19:03:37 greg Exp $";
 #endif
 /*
  *  ambient.c - routines dealing with ambient (inter-reflected) component.
@@ -109,12 +109,12 @@ setambres(				/* set ambient resolution */
 						/* set min & max radii */
 	if (ar <= 0) {
 		minarad = 0;
-		maxarad = thescene.cusize*0.5;
+		maxarad = thescene.cusize*0.2;
 	} else {
 		minarad = thescene.cusize / ar;
 		maxarad = 64.0 * minarad;		/* heuristic */
-		if (maxarad > thescene.cusize*0.5)
-			maxarad = thescene.cusize*0.5;
+		if (maxarad > thescene.cusize*0.2)
+			maxarad = thescene.cusize*0.2;
 	}
 	if (minarad <= FTINY)
 		minarad = 10.0*FTINY;