Generator: Added notes of failed optimization attempts

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1404 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/Generating/HeiGen.cpp

@@ -228,6 +228,12 @@ void cHeiGenBiomal::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMa
 		}  // for x
 	}  // for z
 	
+	/*
+	_X 2013_04_22:
+	There's no point in precalculating the entire perlin noise arrays, too many values are calculated uselessly,
+	resulting in speed DEcrease.
+	*/
+	
 	/*
 	// Linearly interpolate 4x4 blocks of heightmap:
 	// This is fast, but really ugly! Do not use!