diff --git a/examples/terrain_gen/game.cpp b/examples/terrain_gen/game.cpp
index 0547df85..ff63813d 100644
--- a/examples/terrain_gen/game.cpp
+++ b/examples/terrain_gen/game.cpp
@@ -481,10 +481,10 @@ BONSAI_API_WORKER_THREAD_CALLBACK()
           {
 
             /* // FBM params */
-            /* v3 Period = V3(18000); */
-            /* s32 Amplititude = 10000; */
-            /* s32 StartingZDepth = 5000; */
-            /* u32 Octaves = 6; */
+            v3 Period = V3(100000);
+            s32 Amplititude = 20000;
+            s32 StartingZDepth = 5000;
+            u32 Octaves = 7;
 
             /* v3 Period = V3(500); */
             /* s32 Amplititude = 500; */
@@ -504,10 +504,10 @@ BONSAI_API_WORKER_THREAD_CALLBACK()
             /* u32 Octaves = 1; */
             /* /1* u32 Octaves = 4; *1/ */
 
-            v3 Period = V3(50);
-            s32 Amplititude = 60;
-            s32 StartingZDepth = 60;
-            u32 Octaves = 1;
+/*             v3 Period = V3(50); */
+/*             s32 Amplititude = 60; */
+/*             s32 StartingZDepth = 60; */
+/*             u32 Octaves = 4; */
             /* u32 Octaves = 4; */
 
 
diff --git a/examples/terrain_gen/game_constants.h b/examples/terrain_gen/game_constants.h
index e16c2a59..5bea3de8 100644
--- a/examples/terrain_gen/game_constants.h
+++ b/examples/terrain_gen/game_constants.h
@@ -11,14 +11,14 @@ WORLD_CHUNK_DIM = Chunk_Dimension(32, 32, 8);
 global_variable chunk_dimension
 /* g_VisibleRegion = Chunk_Dimension(8192, 8192, 8192); */
 /* g_VisibleRegion = Chunk_Dimension(4096, 4096, 4096); */ // 26km
-/* g_VisibleRegion = Chunk_Dimension(2048, 2048, 2048); // 13.11 km */
+g_VisibleRegion = Chunk_Dimension(2048, 2048, 2048); // 13.11 km
 /* g_VisibleRegion = Chunk_Dimension(512, 512, 512); //  3.28 km */
 /* g_VisibleRegion = Chunk_Dimension(256, 256, 256); */
 /* g_VisibleRegion = Chunk_Dimension(128, 128, 128); */
 /* g_VisibleRegion = Chunk_Dimension(64, 64, 64); */
 /* g_VisibleRegion = Chunk_Dimension(32, 32, 32); */
 /* g_VisibleRegion = Chunk_Dimension(16, 16, 16); */
-g_VisibleRegion = Chunk_Dimension(8, 8, 8);
+/* g_VisibleRegion = Chunk_Dimension(8, 8, 8); */
 /* g_VisibleRegion = Chunk_Dimension(4, 4, 4); */
 /* g_VisibleRegion = Chunk_Dimension(2, 2, 2); */
 
diff --git a/external/bonsai_stdlib b/external/bonsai_stdlib
index 3c28f095..119fb6fa 160000
--- a/external/bonsai_stdlib
+++ b/external/bonsai_stdlib
@@ -1 +1 @@
-Subproject commit 3c28f095059a6be993680c4a9bed53d06c06fbde
+Subproject commit 119fb6fa1737121372637a94a933841819f42568
diff --git a/src/engine/terrain.cpp b/src/engine/terrain.cpp
index 4a778c0b..93e8b465 100644
--- a/src/engine/terrain.cpp
+++ b/src/engine/terrain.cpp
@@ -166,8 +166,8 @@ Terrain_FBM2D( world_chunk *Chunk,
             auto _x1 = U32_8X( xCoords[8], xCoords[9], xCoords[10], xCoords[11], xCoords[12], xCoords[13], xCoords[14], xCoords[15] );
             u32 xParamsIndex = (OctaveIndex*2);
             Assert(xParamsIndex < 15);
-            xParams[OctaveIndex]   = ComputePerlinParameters(U32_8X(WorldBasis.x), _x0, xChunkResolution, U32_8X(u32(InteriorPeriod.x)), PrimeX);
-            xParams[OctaveIndex+1] = ComputePerlinParameters(U32_8X(WorldBasis.x), _x1, xChunkResolution, U32_8X(u32(InteriorPeriod.x)), PrimeX);
+            xParams[(OctaveIndex*2)]   = ComputePerlinParameters(U32_8X(WorldBasis.x), _x0, xChunkResolution, U32_8X(u32(InteriorPeriod.x)), PrimeX);
+            xParams[(OctaveIndex*2)+1] = ComputePerlinParameters(U32_8X(WorldBasis.x), _x1, xChunkResolution, U32_8X(u32(InteriorPeriod.x)), PrimeX);
             InteriorPeriod = Max(V3i(1), InteriorPeriod/2);
           }