diff --git a/src/main/java/com/seibel/lod/objects/PosToGenerateContainer.java b/src/main/java/com/seibel/lod/objects/PosToGenerateContainer.java
index 2aaadab0f..f2d139166 100644
--- a/src/main/java/com/seibel/lod/objects/PosToGenerateContainer.java
+++ b/src/main/java/com/seibel/lod/objects/PosToGenerateContainer.java
@@ -1,16 +1,18 @@
 package com.seibel.lod.objects;
 
+import org.lwjgl.system.CallbackI;
+
 public class PosToGenerateContainer
 {
-	public int playerPosX;
-	public int playerPosZ;
-	public byte farMinDetail;
-	public int maxSize;
-	public int maxNearSize;
-	public int maxFarSize;
-	public int nearSize;
-	public int farSize;
-	public int[][] posToGenerate;
+	private int playerPosX;
+	private int playerPosZ;
+	private byte farMinDetail;
+	private int maxSize;
+	private int maxNearSize;
+	private int maxFarSize;
+	private int nearSize;
+	private int farSize;
+	private int[][] posToGenerate;
 
 	public PosToGenerateContainer(byte farMinDetail, int maxDataToGenerate, int maxFarDataToGenerate, int playerPosX, int playerPosZ)
 	{
@@ -51,32 +53,26 @@ public class PosToGenerateContainer
 				maxNearSize--;
 			}
 			index = posToGenerate.length - farSize;
-			if (!(farSize == maxFarSize && LevelPosUtil.compareLevelAndDistance(tempPos, posToGenerate[index]) >= 0))
+			while (index < posToGenerate.length - 1 && LevelPosUtil.compareLevelAndDistance(tempPos, posToGenerate[index + 1]) <= 0)
 			{
-				while(index < posToGenerate.length - 1 && LevelPosUtil.compareLevelAndDistance(tempPos, posToGenerate[index + 1]) <= 0)
-				{
-					posToGenerate[index] = posToGenerate[index + 1];
-					index++;
-				}
-				if(index <= posToGenerate.length - 1)
-					posToGenerate[index] = tempPos;
+				posToGenerate[index] = posToGenerate[index + 1];
+				index++;
 			}
+			if (index <= posToGenerate.length - 1)
+				posToGenerate[index] = tempPos;
 		} else
 		{//We are introducing a position in the near array
 			if (nearSize < maxNearSize)
 				nearSize++;
 			index = nearSize - 1;
 
-			if(!(nearSize >= maxNearSize && LevelPosUtil.compareDistance(tempPos, posToGenerate[index]) >= 0)){
-
-				while(index > 0 && LevelPosUtil.compareDistance(tempPos, posToGenerate[index - 1]) <= 0)
-				{
-					posToGenerate[index] = posToGenerate[index - 1];
-					index--;
-				}
-				if(index >= 0)
-					posToGenerate[index] = tempPos;
+			while (index > 0 && LevelPosUtil.compareDistance(tempPos, posToGenerate[index - 1]) <= 0)
+			{
+				posToGenerate[index] = posToGenerate[index - 1];
+				index--;
 			}
+			if (index >= 0)
+				posToGenerate[index] = tempPos;
 		}
 	}
 
@@ -89,13 +85,56 @@ public class PosToGenerateContainer
 	public int[] getNthPos(int n)
 	{
 		int index;
-		if(n > farSize * 2)
+		if (n > farSize * 2)
 			index = n - farSize;
+		else if (n % 2 == 0)
+			index = n / 2;
 		else
-			if (n % 2 == 0)
-				index = n/2;
-			else
-				index = posToGenerate.length - n/2 - 1;
+			index = posToGenerate.length - n / 2 - 1;
 		return posToGenerate[index];
 	}
+
+	public String toString()
+	{
+		StringBuilder builder = new StringBuilder();
+		builder.append("Number of pos to generate ");
+		builder.append(farSize + nearSize);
+		builder.append('\n');
+		builder.append("Number of near pos to generate ");
+		builder.append(nearSize);
+		builder.append('\n');
+		builder.append("Number of far pos to generate ");
+		builder.append(farSize);
+		builder.append('\n');
+		builder.append('\n');
+		builder.append("near pos to generate");
+		builder.append('\n');
+		for (int i = 0; i < nearSize; i++)
+		{
+			builder.append(posToGenerate[i][0]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][1]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][2]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][3]);
+			builder.append('\n');
+		}
+		builder.append('\n');
+		builder.append("far pos to generate");
+		builder.append('\n');
+		for (int i = maxSize - 1; i >= maxSize - farSize; i--)
+		{
+			builder.append(posToGenerate[i][0]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][1]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][2]);
+			builder.append(" ");
+			builder.append(posToGenerate[i][3]);
+			builder.append('\n');
+		}
+		builder.append('\n');
+		return builder.toString();
+	}
 }
diff --git a/src/main/java/com/seibel/lod/objects/PosToRenderContainer.java b/src/main/java/com/seibel/lod/objects/PosToRenderContainer.java
index 5fbb19f61..7bf05c2b9 100644
--- a/src/main/java/com/seibel/lod/objects/PosToRenderContainer.java
+++ b/src/main/java/com/seibel/lod/objects/PosToRenderContainer.java
@@ -1,5 +1,7 @@
 package com.seibel.lod.objects;
 
+import com.seibel.lod.util.LodUtil;
+
 import java.util.Arrays;
 
 public class PosToRenderContainer
@@ -7,6 +9,7 @@ public class PosToRenderContainer
 	private byte minDetail;
 	private int numberOfPosToRender;
 	private int[][] posToRender;
+	/*TODO this population matrix could be converted to boolean to improve memory use*/
 	private byte[][] population;
 
 	public PosToRenderContainer(byte minDetail)
@@ -14,7 +17,8 @@ public class PosToRenderContainer
 		this.minDetail = minDetail;
 		this.numberOfPosToRender = 0;
 		posToRender = new int[1][4];
-		population = new byte[minDetail][minDetail];
+		int size = 1 << (LodUtil.REGION_DETAIL_LEVEL - minDetail);
+		population = new byte[size][size];
 	}
 
 	public void addPosToRender(int[] levelPos)
@@ -23,13 +27,14 @@ public class PosToRenderContainer
 			posToRender = Arrays.copyOf(posToRender, posToRender.length*2);
 		posToRender[numberOfPosToRender] = levelPos;
 		numberOfPosToRender++;
-		int[] newLevelPos = LevelPosUtil.convert(levelPos, minDetail);
+		int[] newLevelPos = LevelPosUtil.getRegionModule(LevelPosUtil.convert(levelPos, minDetail));
 		population[LevelPosUtil.getPosZ(newLevelPos)][LevelPosUtil.getPosZ(newLevelPos)] = (byte) (LevelPosUtil.getDetailLevel(levelPos) + 1);
 	}
 
-	public boolean isToRender(int[] levelPos)
+	public boolean contains(int[] levelPos)
 	{
-		return (population[LevelPosUtil.getPosZ(levelPos)][LevelPosUtil.getPosZ(levelPos)] == (LevelPosUtil.getDetailLevel(levelPos) + 1));
+		int[] newLevelPos = LevelPosUtil.convert(LevelPosUtil.getRegionModule(levelPos), minDetail);
+		return (population[LevelPosUtil.getPosZ(newLevelPos)][LevelPosUtil.getPosZ(newLevelPos)] == (LevelPosUtil.getDetailLevel(levelPos) + 1));
 	}
 
 	public int getNumberOfPos()
@@ -41,4 +46,21 @@ public class PosToRenderContainer
 	{
 		return posToRender[n];
 	}
+
+	public String toString()
+	{
+
+		StringBuilder builder = new StringBuilder();
+		for(int i = 0; i < numberOfPosToRender; i++)
+		{
+			builder.append(posToRender[i][0]);
+			builder.append(" ");
+			builder.append(posToRender[i][1]);
+			builder.append(" ");
+			builder.append(posToRender[i][2]);
+			builder.append('\n');
+		}
+		builder.append('\n');
+		return builder.toString();
+	}
 }