Fixes

src/main/java/com/volmit/iris/engine/IrisComplex.java

@@ -77,11 +77,13 @@ public class IrisComplex implements DataProvider {
     private ProceduralStream<Biome> trueBiomeDerivativeStream;
     private ProceduralStream<Double> heightStream;
     private ProceduralStream<Double> heightStreamNoFeatures;
+    private ProceduralStream<Double> heightDomainStreamNoFeatures;
     private ProceduralStream<Double> objectChanceStream;
     private ProceduralStream<Double> maxHeightStream;
     private ProceduralStream<Double> overlayStream;
     private ProceduralStream<Double> heightFluidStream;
     private ProceduralStream<Integer> trueHeightStream;
+    private ProceduralStream<Integer> trueHeightDomainStream;
     private ProceduralStream<Double> slopeStream;
     private ProceduralStream<Integer> islandTopStream;
     private ProceduralStream<Integer> islandBottomStream;
@@ -227,6 +229,25 @@ public class IrisComplex implements DataProvider {
             IrisBiome b = focus != null ? focus : baseBiomeStream.get(x, z);
             return getHeight(engine, b, x, z, engine.getWorld().seed(), false);
         }, Interpolated.DOUBLE).clamp(0, engine.getHeight()).cache2D(cacheSize);
+        heightDomainStreamNoFeatures = engine.getDimension().getVerticalDomain().isFlat()
+                ? heightStreamNoFeatures
+                : ProceduralStream.of((x, z) -> {
+            double hh = 0;
+            double v, i;
+
+            for(i = 0; i < engine.getHeight(); i++)
+            {
+                double ox = engine.getDimension().getVerticalDomain().get(rng, getData(), i - 12345);
+                double oz = engine.getDimension().getVerticalDomain().get(rng, getData(), i + 54321);
+                v = heightStreamNoFeatures.get(x+ox, z+oz);
+                if(v > hh)
+                {
+                    hh = v;
+                }
+            }
+
+            return hh;
+        }, Interpolated.DOUBLE).cache2D(cacheSize);
         slopeStream = heightStream.slope(3).cache2D(cacheSize);
         objectChanceStream = ProceduralStream.ofDouble((x, z) -> {
             if (engine.getDimension().hasFeatures(engine)) {
@@ -324,6 +345,7 @@ public class IrisComplex implements DataProvider {
                 .convertAware2D((b, xx, zz) -> decorateFor(b, xx, zz, IrisDecorationPart.SEA_SURFACE)).cache2D(cacheSize);
         seaFloorDecoration = trueBiomeStream
                 .convertAware2D((b, xx, zz) -> decorateFor(b, xx, zz, IrisDecorationPart.SEA_FLOOR)).cache2D(cacheSize);
+
         trueHeightStream = ProceduralStream.of((x, z) -> {
             int rx = (int) Math.round(engine.modifyX(x));
             int rz = (int) Math.round(engine.modifyZ(z));
@@ -371,6 +393,26 @@ public class IrisComplex implements DataProvider {
                         .get(x, z) : 0);
         islandBottomStream = islandStream.convertAware2D((i, x, z) ->
                 i ? islandHeightStream.subtract(islandDepthStream).round().get(x, z) : 0);
+
+        trueHeightDomainStream = engine.getDimension().getVerticalDomain().isFlat()
+                ? trueHeightStream
+                : ProceduralStream.of((x, z) -> {
+            double hh = 0;
+            double v, i;
+
+            for(i = 0; i < engine.getHeight(); i++)
+            {
+                double ox = engine.getDimension().getVerticalDomain().get(rng, getData(), i - 12345);
+                double oz = engine.getDimension().getVerticalDomain().get(rng, getData(), i + 54321);
+                v = trueHeightStream.get(x+ox, z+oz);
+                if(v > hh)
+                {
+                    hh = v;
+                }
+            }
+
+            return (int)Math.round(hh);
+        }, Interpolated.INT).cache2D(cacheSize);
         //@done
     }
 

src/main/java/com/volmit/iris/engine/object/biome/IrisBiome.java

@@ -35,6 +35,7 @@ import com.volmit.iris.engine.object.jigsaw.IrisJigsawStructurePlacement;
 import com.volmit.iris.engine.object.loot.IrisLootReference;
 import com.volmit.iris.engine.object.meta.IrisEffect;
 import com.volmit.iris.engine.object.noise.IrisGeneratorStyle;
+import com.volmit.iris.engine.object.noise.IrisShapedGeneratorStyle;
 import com.volmit.iris.engine.object.noise.IrisSlopeClip;
 import com.volmit.iris.engine.object.noise.NoiseStyle;
 import com.volmit.iris.engine.object.objects.IrisObject;

src/main/java/com/volmit/iris/engine/object/deposits/IrisDepositGenerator.java

@@ -22,6 +22,7 @@ import com.volmit.iris.core.project.loader.IrisData;
 import com.volmit.iris.engine.data.cache.AtomicCache;
 import com.volmit.iris.engine.object.annotations.*;
 import com.volmit.iris.engine.object.block.IrisBlockData;
+import com.volmit.iris.engine.object.noise.IrisGenerator;
 import com.volmit.iris.engine.object.objects.IrisObject;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.math.RNG;

src/main/java/com/volmit/iris/engine/object/dimensional/IrisDimension.java

@@ -39,6 +39,7 @@ import com.volmit.iris.engine.object.jigsaw.IrisJigsawStructure;
 import com.volmit.iris.engine.object.jigsaw.IrisJigsawStructurePlacement;
 import com.volmit.iris.engine.object.loot.IrisLootReference;
 import com.volmit.iris.engine.object.noise.IrisGeneratorStyle;
+import com.volmit.iris.engine.object.noise.IrisInterpolator;
 import com.volmit.iris.engine.object.noise.IrisShapedGeneratorStyle;
 import com.volmit.iris.engine.object.noise.NoiseStyle;
 import com.volmit.iris.engine.object.objects.IrisObjectPlacement;
@@ -315,9 +316,6 @@ public class IrisDimension extends IrisRegistrant {
     @Desc("If true, the spawner system has infinite energy. This is NOT recommended because it would allow for mobs to keep spawning over and over without a rate limit")
     private boolean infiniteEnergy = false;
 
-    @Desc("If defined, warp the terrain vertically by this style. This will cause overhangs & carving-like shapes")
-    private IrisShapedGeneratorStyle verticalDomain = new IrisShapedGeneratorStyle(NoiseStyle.FLAT, 1, 1);
-
     @MinNumber(0.0001)
     @MaxNumber(512)
     @Desc("The rock zoom mostly for zooming in on a wispy palette")
@@ -332,6 +330,9 @@ public class IrisDimension extends IrisRegistrant {
     @Desc("Cartographer map trade overrides")
     private IrisVillagerOverride patchCartographers = new IrisVillagerOverride().setDisableTrade(false);
 
+    @Desc("If defined, warp the terrain vertically by this style. This will cause overhangs & carving-like shapes")
+    private IrisShapedGeneratorStyle verticalDomain = new IrisShapedGeneratorStyle(NoiseStyle.FLAT, 1, 1);
+
     private final transient AtomicCache<Position2> parallaxSize = new AtomicCache<>();
     private final transient AtomicCache<CNG> rockLayerGenerator = new AtomicCache<>();
     private final transient AtomicCache<CNG> fluidLayerGenerator = new AtomicCache<>();

src/main/java/com/volmit/iris/engine/object/noise/IrisInterpolator.java

@@ -38,13 +38,13 @@ import lombok.experimental.Accessors;
 public class IrisInterpolator {
     @Required
     @Desc("The interpolation method when two biomes use different heights but this same generator")
-    private InterpolationMethod function = InterpolationMethod.BICUBIC;
+    private InterpolationMethod function = InterpolationMethod.BILINEAR_STARCAST_6;
 
     @Required
     @MinNumber(1)
     @MaxNumber(8192)
     @Desc("The range checked horizontally. Smaller ranges yeild more detail but are not as smooth.")
-    private double horizontalScale = 3;
+    private double horizontalScale = 7;
 
     public double interpolate(double x, double z, NoiseProvider provider) {
         return interpolate((int) Math.round(x), (int) Math.round(z), provider);

src/main/java/com/volmit/iris/engine/object/regional/IrisRegion.java

@@ -34,6 +34,7 @@ import com.volmit.iris.engine.object.jigsaw.IrisJigsawStructurePlacement;
 import com.volmit.iris.engine.object.loot.IrisLootReference;
 import com.volmit.iris.engine.object.meta.IrisEffect;
 import com.volmit.iris.engine.object.noise.IrisGeneratorStyle;
+import com.volmit.iris.engine.object.noise.IrisShapedGeneratorStyle;
 import com.volmit.iris.engine.object.noise.NoiseStyle;
 import com.volmit.iris.engine.object.objects.IrisObjectPlacement;
 import com.volmit.iris.engine.object.spawners.IrisSpawner;

src/main/java/com/volmit/iris/util/stream/interpolation/Interpolated.java

@@ -32,6 +32,7 @@ public interface Interpolated<T> {
     Interpolated<KList<CaveResult>> CAVE_RESULTS = of((t) -> 0D, (t) -> null);
     Interpolated<RNG> RNG = of((t) -> 0D, (t) -> null);
     Interpolated<Double> DOUBLE = of((t) -> t, (t) -> t);
+    Interpolated<Double[]> DOUBLE_ARRAY = of((t) -> 0D, (t) -> new Double[2]);
     Interpolated<Boolean> BOOLEAN = of((t) -> 0D, (t) -> false);
     Interpolated<Integer> INT = of(Double::valueOf, Double::intValue);
     Interpolated<Long> LONG = of(Double::valueOf, Double::longValue);