diff -r 83d0200d4c09 -r 28f6e8b9d5d1 src/noise.cc
--- a/src/noise.cc	Sun Dec 09 15:01:51 2007 +0100
+++ b/src/noise.cc	Sun Dec 09 23:10:58 2007 +0100
@@ -1,3 +1,10 @@
+/*
+ * Pyrit Ray Tracer
+ * file: noise.cc
+ *
+ * Radek Brich, 2006-2007
+ */
+
 /*
 Based on
 JAVA REFERENCE IMPLEMENTATION OF IMPROVED NOISE