diff --git a/src/main/java/com/emamaker/voxeltest/intervaltrees/world/chunk/ChunkGenerator.java b/src/main/java/com/emamaker/voxeltest/intervaltrees/world/chunk/ChunkGenerator.java
index bb49fef..2375b43 100644
--- a/src/main/java/com/emamaker/voxeltest/intervaltrees/world/chunk/ChunkGenerator.java
+++ b/src/main/java/com/emamaker/voxeltest/intervaltrees/world/chunk/ChunkGenerator.java
@@ -52,6 +52,13 @@ public class ChunkGenerator {
 
     OpenSimplexNoise noiseGen1 = new OpenSimplexNoise(new Random().nextInt());
     OpenSimplexNoise noiseGen2 = new OpenSimplexNoise(new Random().nextInt());
+    // Generates smooth terrain using 2 layers of noise. This method takes advantage of how the interval map works and doesn't need a preliminary step to store data in an array
+    // TODO (?): This can be optimizied for speed by only calculating noise levels at x-z coordinates once, and storing them in a 2d array
+
+    // No LUT: about 135 ms
+    // LUT: about 35 ms
+    int[] grassNoiseLUT = new int[Config.CHUNK_SIZE*Config.CHUNK_SIZE];
+    int[] dirtNoiseLUT = new int[Config.CHUNK_SIZE*Config.CHUNK_SIZE];
     public void generateNoise(Chunk c) {
         short coords[];
         int x, y, z;
@@ -60,14 +67,21 @@ public class ChunkGenerator {
         Blocks prevBlock = null, block = Blocks.AIR;
 
         c.setState(Chunk.CHUNK_STATE_EMPTY, true);
+        for(int i = 0; i < Config.CHUNK_SIZE*Config.CHUNK_SIZE; i++){
+            grassNoiseLUT[i] = -1;
+            dirtNoiseLUT[i] = -1;
+        }
         for(int i = 0; i < Config.CHUNK_3DCOORD_MAX_INDEX + 1; i++){
                     coords = SpaceFillingCurve.HILBERT_XYZ_DECODE[i];
                     x = c.posx * Config.CHUNK_SIZE + coords[0];
                     y = c.posy * Config.CHUNK_SIZE + coords[1];
                     z = c.posz * Config.CHUNK_SIZE + coords[2];
 
-                    grassNoise = GRASS_OFFSET + (int) ((0.5d + noiseGen1.eval(x * NOISE_GRASS_X_MULT, z * NOISE_GRASS_Z_MULT)) * NOISE_GRASS_MULT);
-                    dirtNoise = NOISE_DIRT_MIN + (int) ((0.5f + noiseGen2.eval(x * NOISE_DIRT_X_MULT, z * NOISE_DIRT_Z_MULT)) * NOISE_DIRT_MULT);
+                    if(grassNoiseLUT[coords[0] + Config.CHUNK_SIZE*coords[2]] == -1) grassNoiseLUT[coords[0] +Config.CHUNK_SIZE*coords[2]] = GRASS_OFFSET + (int) ((0.5d + noiseGen1.eval(x * NOISE_GRASS_X_MULT, z * NOISE_GRASS_Z_MULT)) * NOISE_GRASS_MULT);
+                    if(dirtNoiseLUT[coords[0] + Config.CHUNK_SIZE*coords[2]] == -1) dirtNoiseLUT[coords[0] +Config.CHUNK_SIZE*coords[2]] =  NOISE_DIRT_MIN + (int) ((0.5f + noiseGen2.eval(x * NOISE_DIRT_X_MULT, z * NOISE_DIRT_Z_MULT)) * NOISE_DIRT_MULT);
+
+                    grassNoise = grassNoiseLUT[coords[0] + Config.CHUNK_SIZE*coords[2]];
+                    dirtNoise = dirtNoiseLUT[coords[0] + Config.CHUNK_SIZE*coords[2]];
                     stoneLevel = grassNoise - dirtNoise;
 
                     if (y < stoneLevel) block = Blocks.STONE;
@@ -87,7 +101,6 @@ public class ChunkGenerator {
 
         if(prevBlock!= Blocks.AIR) c.setState(Chunk.CHUNK_STATE_EMPTY, false);
         c.setBlocks(prevBlock, start, Config.CHUNK_3DCOORD_MAX_INDEX + 1);
-        //c.blocks.print();
     }
 
     /*public void generateNoise(Chunk c) {