diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
index adafc6dd..d94f21dd 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
@@ -275,18 +275,18 @@ public class HeightMapMCAGenerator extends MCAWriter implements Extent {
                 BaseBlock block = textureUtil.getNearestBlock(color);
                 TextureUtil.BiomeColor biome = textureUtil.getNearestBiome(color);
                 int blockColor = textureUtil.getColor(block);
-                if (textureUtil.colorDistance(biome.grass, color) < textureUtil.colorDistance(blockColor, color)) {
+                if (textureUtil.colorDistance(biome.grass, color) <= textureUtil.colorDistance(blockColor, color)) {
                     byte biomeByte = (byte) biome.id;
                     biomes[index] = biomeByte;
                     if (yBiome && x > 0 && x < widthIndex) {
-                        setBiomeIfZero(index+ 1, biomeByte);
-                        setBiomeIfZero(index- 1, biomeByte);
-                        setBiomeIfZero(index+ getWidth(), biomeByte);
-                        setBiomeIfZero(index+ getWidth() + 1, biomeByte);
-                        setBiomeIfZero(index+ getWidth() - 1, biomeByte);
-                        setBiomeIfZero(index- getWidth(), biomeByte);
-                        setBiomeIfZero(index- getWidth() + 1, biomeByte);
-                        setBiomeIfZero(index- getWidth() - 1, biomeByte);
+                        setBiomeIfZero(index + 1, biomeByte);
+                        setBiomeIfZero(index - 1, biomeByte);
+                        setBiomeIfZero(index + getWidth(), biomeByte);
+                        setBiomeIfZero(index + getWidth() + 1, biomeByte);
+                        setBiomeIfZero(index + getWidth() - 1, biomeByte);
+                        setBiomeIfZero(index - getWidth(), biomeByte);
+                        setBiomeIfZero(index - getWidth() + 1, biomeByte);
+                        setBiomeIfZero(index - getWidth() - 1, biomeByte);
                     }
                 } else {
                     char combined = (char) block.getCombined();
diff --git a/core/src/main/java/com/boydti/fawe/util/CleanTextureUtil.java b/core/src/main/java/com/boydti/fawe/util/CleanTextureUtil.java
index d9e44e88..9c5b5d69 100644
--- a/core/src/main/java/com/boydti/fawe/util/CleanTextureUtil.java
+++ b/core/src/main/java/com/boydti/fawe/util/CleanTextureUtil.java
@@ -11,6 +11,7 @@ public class CleanTextureUtil extends TextureUtil {
         long max = parent.distances[maxIndex];
         int num = maxIndex - minIndex + 1;
 
+        this.validBiomes = parent.validBiomes;
         this.blockColors = parent.blockColors;
         this.blockDistance = parent.blockDistance;
         this.distances = Arrays.copyOfRange(parent.blockDistance, minIndex, maxIndex + 1);
diff --git a/core/src/main/java/com/boydti/fawe/util/DelegateTextureUtil.java b/core/src/main/java/com/boydti/fawe/util/DelegateTextureUtil.java
index cb1ed5eb..dc90ea90 100644
--- a/core/src/main/java/com/boydti/fawe/util/DelegateTextureUtil.java
+++ b/core/src/main/java/com/boydti/fawe/util/DelegateTextureUtil.java
@@ -9,6 +9,10 @@ import org.json.simple.parser.ParseException;
 public class DelegateTextureUtil extends TextureUtil {
     private final TextureUtil parent;
 
+    public static void main(String[] args) throws Throwable {
+        TextureUtil.main(args);
+    }
+
     public DelegateTextureUtil(TextureUtil parent) {
         super(parent.getFolder());
         this.parent = parent;
@@ -39,6 +43,16 @@ public class DelegateTextureUtil extends TextureUtil {
         return parent.getColor(block);
     }
 
+    @Override
+    public BiomeColor getBiome(int biome) {
+        return parent.getBiome(biome);
+    }
+
+    @Override
+    public BiomeColor getNearestBiome(int color) {
+        return parent.getNearestBiome(color);
+    }
+
     @Override
     public File getFolder() {
         return parent.getFolder();
@@ -49,11 +63,21 @@ public class DelegateTextureUtil extends TextureUtil {
         return parent.combineTransparency(top, bottom);
     }
 
+    @Override
+    public void calculateLayerArrays() {
+        parent.calculateLayerArrays();
+    }
+
     @Override
     public void loadModTextures() throws IOException, ParseException {
         parent.loadModTextures();
     }
 
+    @Override
+    public int multiply(int c1, int c2) {
+        return parent.multiply(c1, c2);
+    }
+
     @Override
     public BaseBlock getNearestBlock(BaseBlock block, boolean darker) {
         return parent.getNearestBlock(block, darker);
@@ -79,8 +103,17 @@ public class DelegateTextureUtil extends TextureUtil {
         return parent.colorDistance(red1, green1, blue1, c2);
     }
 
+    public static int hueDistance(int red1, int green1, int blue1, int red2, int green2, int blue2) {
+        return TextureUtil.hueDistance(red1, green1, blue1, red2, green2, blue2);
+    }
+
     @Override
     public int getColor(BufferedImage image) {
         return parent.getColor(image);
     }
+
+    @Override
+    public long getDistance(BufferedImage image, int c1) {
+        return parent.getDistance(image, c1);
+    }
 }
diff --git a/core/src/main/java/com/boydti/fawe/util/FilteredTextureUtil.java b/core/src/main/java/com/boydti/fawe/util/FilteredTextureUtil.java
index f9a293fa..fd89de8e 100644
--- a/core/src/main/java/com/boydti/fawe/util/FilteredTextureUtil.java
+++ b/core/src/main/java/com/boydti/fawe/util/FilteredTextureUtil.java
@@ -7,6 +7,7 @@ import java.util.Set;
 public class FilteredTextureUtil extends TextureUtil {
     public FilteredTextureUtil(TextureUtil parent, Set<BaseBlock> blocks) {
         super(parent.getFolder());
+        this.validBiomes = parent.validBiomes;
         this.blockColors = parent.blockColors;
         this.blockDistance = parent.blockDistance;
         this.distances = parent.distances;
diff --git a/core/src/main/java/com/boydti/fawe/util/TextureUtil.java b/core/src/main/java/com/boydti/fawe/util/TextureUtil.java
index eaf2d437..581975f8 100644
--- a/core/src/main/java/com/boydti/fawe/util/TextureUtil.java
+++ b/core/src/main/java/com/boydti/fawe/util/TextureUtil.java
@@ -52,7 +52,7 @@ public class TextureUtil {
     /**
      * https://github.com/erich666/Mineways/blob/master/Win/biomes.cpp
      */
-    private BiomeColor[] validBiomes;
+    protected BiomeColor[] validBiomes;
     private BiomeColor[] biomes = new BiomeColor[] {
             //    ID    Name             Temperature, rainfall, grass, foliage colors
             //    - note: the colors here are just placeholders, they are computed in the program
@@ -823,7 +823,7 @@ public class TextureUtil {
         int g = green1 - green2;
         int b = blue1 - blue2;
         int hd = hueDistance(red1, green1, blue1, red2, green2, blue2);
-        return (((512 + rmean) * r * r) >> 8) + 4 * g * g + (((767 - rmean) * b * b) >> 8) + (hd);
+        return (((512 + rmean) * r * r) >> 8) + 4 * g * g + (((767 - rmean) * b * b) >> 8) + (hd * hd);
     }
 
     protected static int hueDistance(int red1, int green1, int blue1, int red2, int green2, int blue2) {