--- a/src/kdtree.cc	Sat Dec 08 12:37:45 2007 +0100
+++ b/src/kdtree.cc	Sat Dec 08 14:07:42 2007 +0100
@@ -183,7 +183,7 @@
 		return;
 	}
 
-#if 1
+#if 0
 // export kd-tree as .obj for visualization
 // this would be hard to reconstruct later
 	static ofstream F("kdtree.obj");