Fixed world height and color texture lookup.

assets/4x4checkerPattern.png.import

@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/4x4checkerPattern.png-73d552959f1dc927e6542b979f612974.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/4x4checkerPattern.png"
+dest_files=[ "res://.import/4x4checkerPattern.png-73d552959f1dc927e6542b979f612974.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=true
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=1
+process/fix_alpha_border=false
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

assets/5x5checkerColor.png.import

@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/5x5checkerColor.png-0b102dcaa34ad617f92db40e12de058f.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/5x5checkerColor.png"
+dest_files=[ "res://.import/5x5checkerColor.png-0b102dcaa34ad617f92db40e12de058f.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=1
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=1
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

assets/5x5checkerPattern.png.import

@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/5x5checkerPattern.png-1235e6d8801ed94a1c7fab425cf83b94.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/5x5checkerPattern.png"
+dest_files=[ "res://.import/5x5checkerPattern.png-1235e6d8801ed94a1c7fab425cf83b94.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=1
+process/fix_alpha_border=false
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

materials/HexTileTextureLookup.tres

@@ -1,6 +1,6 @@
 [gd_resource type="ShaderMaterial" load_steps=3 format=2]
 
-[ext_resource path="res://assets/4x4checkerColor.png" type="Texture" id=1]
+[ext_resource path="res://assets/4x4checkerPattern.png" type="Texture" id=1]
 [ext_resource path="res://materials/shader/HexToTexture.gdshader" type="Shader" id=2]
 
 [resource]

materials/shader/CoordToTexture.gdshader

@@ -0,0 +1,79 @@
+shader_type spatial;
+render_mode specular_schlick_ggx, async_visible;
+
+uniform sampler2D MapAlbedoTexture : hint_black_albedo;
+uniform int TextureSize: hint_range(0, 1024, 4);
+varying vec2 map_coord;
+varying vec3 obj_coord;
+
+const mat2 _HexAffineInverse = mat2(vec2(1.333333, -0.6666667), vec2(0, -1.154701));
+
+vec3 axial_to_cube(vec2 axial) {
+	return vec3(axial.x, axial.y, -axial.x - axial.y);
+}
+
+ivec3 round_cube_coords(vec3 cube) {
+	ivec3 rounded = ivec3(round(cube));
+	
+	vec3 diffs = abs(vec3(rounded) - cube);
+	
+	if (diffs.x > diffs.y && diffs.x > diffs.z) {
+		rounded.x = -rounded.y - rounded.z;
+	} else if (diffs.y > diffs.z) {
+		rounded.y = -rounded.x - rounded.z;
+	} else {
+		 rounded.z = -rounded.x - rounded.y;
+	}
+	
+	return rounded;
+}
+
+vec2 axial_to_offset(vec2 axial) {
+	ivec3 cubeCoords = round_cube_coords(axial_to_cube(axial));
+    int x = cubeCoords.x;
+    int y = cubeCoords.y;
+    int off_y = y + (x - (x & 1)) / 2;
+    return vec2(float(x), float(off_y));
+}
+
+void vertex() {
+// Input:2
+	mat4 model_matrix = WORLD_MATRIX;
+
+	vec3 origin = vec4(WORLD_MATRIX * vec4(0, 0, 0, 1)).xyz;
+	vec3 axial_coords = vec3(_HexAffineInverse * origin.xz, 0);
+
+	vec2 offset_coords = axial_to_offset(axial_coords.xy);
+	//map_coord = mod(axial_to_offset(axial_coords.xy), vec2(float(TextureSize)));
+	map_coord = offset_coords;
+	map_coord.y = -map_coord.y;
+	
+	
+	float map_size = 4.0;
+	map_coord = mod(origin.xz, map_size) / (map_size);
+	//map_coord = mod((round(origin.xz * map_size)) / (map_size) , map_size);
+	
+//	if (map_coord.x > map_size) {
+//		map_coord.x = map_coord.x - (map_size + 1.0);
+//	}
+	
+//	map_coord.x = map_coord.x / map_size;
+//	map_coord.x = (mod (map_coord.x, map_size) / (map_size + 1.0));
+//	map_coord.y = (mod (map_coord.y, map_size) / (map_size + 1.0));
+	
+//	ivec2 map_coord_i = ivec2(map_coord);
+//	map_coord_i.x = map_coord_i.x % TextureSize;
+//	map_coord_i.y = map_coord_i.y % TextureSize;
+//	map_coord = vec2(map_coord_i) / float(TextureSize);
+	obj_coord = origin;
+}
+
+void fragment() {
+	//ALBEDO = pow(texture(MapAlbedoTexture, map_coord).rgb, vec3(2.4));
+	ALBEDO = texture(MapAlbedoTexture, map_coord).rgb;
+}
+
+void light() {
+// Output:0
+
+}

materials/shader/HexToTexture.gdshader

@@ -31,23 +31,26 @@ vec2 axial_to_offset(vec2 axial) {
 	ivec3 cubeCoords = round_cube_coords(axial_to_cube(axial));
     int x = cubeCoords.x;
     int y = cubeCoords.y;
-    int off_y = y + (x - (x % 2)) / 2;
+    int off_y = y + (x - (x & 1)) / 2;
     return vec2(float(x), float(off_y));
 }
 
 void vertex() {
-// Input:2
 	mat4 model_matrix = WORLD_MATRIX;
 
 	vec3 origin = vec4(WORLD_MATRIX * vec4(0, 0, 0, 1)).xyz;
 	vec3 axial_coords = vec3(_HexAffineInverse * origin.xz, 0);
 
-	map_coord = origin.xz * 1. / float(TextureSize);
+	map_coord = axial_to_offset(axial_coords.xy);
-	map_coord = axial_to_offset(axial_coords.xy) / float(TextureSize) - vec2(0.5);
 }
 
 void fragment() {
-	ALBEDO = pow(texture(MapAlbedoTexture, map_coord).rgb, vec3(2.4));
+	float size = float(TextureSize);
+	vec2 texel_offset = vec2(ceil(size / 2.0));	
+	ivec2 texel_coord = ivec2(mod(map_coord.xy - texel_offset, vec2(size)));
+	vec4 texel_value = texelFetch(MapAlbedoTexture, texel_coord, 0);
+	
+	ALBEDO = texelFetch(MapAlbedoTexture, texel_coord, 0).rgb;
 }
 
 void light() {

project.godot

@@ -90,6 +90,7 @@ window/stretch/aspect="expand"
 [global]
 
 collision=false
+srgb=false
 
 [input]
 

scenes/Game.cs

@@ -65,7 +65,7 @@ public class Game : Spatial
         _player = GetNode<Player>("Player");
         _chest = GetNode<Chest>("Entities/Chest");
         _tileWorld = GetNode<TileWorld>("TileWorld");
-        _camera = GetNode<Camera>("Camera");
+        _camera = GetNode<Camera>("StreamContainer/Camera");
         _cameraOffset = _camera.GlobalTranslation - _player.GlobalTranslation;
 
         Debug.Assert(_tileWorld != null);
@@ -114,7 +114,7 @@ public class Game : Spatial
             worldInfoComponent.SetWorld(_tileWorld);
         }
 
-        _tileWorld.Generate();
+        _tileWorld.Generate(_tileWorld.Size);
         UpdateCurrentTile();
         _streamContainer.SetCenterTile(_currentTile);
     }
@@ -177,15 +177,21 @@ public class Game : Spatial
 
         Transform cameraTransform = _camera.Transform;
         cameraTransform.origin = _player.GlobalTranslation + _cameraOffset;
-        _camera.Transform = cameraTransform;
+//        _camera.Transform = cameraTransform;
     }
 
 
     public void OnGenerateButton()
     {
         GD.Print("Generating");
+        Slider worldSizeSlider = (Slider)FindNode("WorldSizeSlider");
+        if (worldSizeSlider == null)
+        {
+            GD.PrintErr("Could not find WorldSizeSlider!");
+            return;
+        }
         _tileWorld.Seed = _tileWorld.Seed + 1;
-        _tileWorld.Generate();
+        _tileWorld.Generate((int)worldSizeSlider.Value);
     }
     
 
@@ -266,7 +272,7 @@ public class Game : Spatial
 
     public void OnWorldGenerated()
     {
-        GD.Print("Using new map");
+        GD.Print("Using new map. Size: " + (int)_tileWorld.Colormap.GetSize().x);
         
         ImageTexture newWorldTexture = new ImageTexture();
         newWorldTexture.CreateFromImage(_tileWorld.Colormap, (uint) (Texture.FlagsEnum.Mipmaps | Texture.FlagsEnum.Repeat));

scenes/Game.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=22 format=2]
+[gd_scene load_steps=19 format=2]
 
 [ext_resource path="res://scenes/StreamContainer.cs" type="Script" id=1]
 [ext_resource path="res://components/NavigationComponent.cs" type="Script" id=2]
@@ -11,6 +11,7 @@
 [ext_resource path="res://scenes/Game.cs" type="Script" id=9]
 [ext_resource path="res://scenes/DebugCamera.gd" type="Script" id=10]
 [ext_resource path="res://assets/CreatusPiratePack/Models/Characters/gltf/Pirate1final.glb" type="PackedScene" id=11]
+[ext_resource path="res://ui/WorldGeneratorUI.gd" type="Script" id=12]
 
 [sub_resource type="CubeMesh" id=1]
 size = Vector3( 1, 1, 1 )
@@ -26,19 +27,6 @@ extents = Vector3( 20, 1, 20 )
 radius = 0.3
 height = 0.2
 
-[sub_resource type="SpatialMaterial" id=20]
-albedo_color = Color( 0.741176, 0.529412, 0.32549, 1 )
-
-[sub_resource type="CapsuleMesh" id=8]
-material = SubResource( 20 )
-radius = 0.2
-mid_height = 0.5
-radial_segments = 16
-
-[sub_resource type="CubeMesh" id=14]
-
-[sub_resource type="PrismMesh" id=15]
-
 [sub_resource type="CylinderShape" id=24]
 height = 0.2
 
@@ -68,19 +56,20 @@ margin_bottom = 158.0
 mouse_filter = 2
 alignment = 2
 
-[node name="VBoxContainer" type="VBoxContainer" parent="Control/HBoxContainer"]
+[node name="WorldGeneratorUI" type="VBoxContainer" parent="Control/HBoxContainer"]
 margin_right = 100.0
-margin_bottom = 228.0
+margin_bottom = 248.0
 alignment = 2
+script = ExtResource( 12 )
 
-[node name="WorldTextureRect" type="TextureRect" parent="Control/HBoxContainer/VBoxContainer"]
+[node name="WorldTextureRect" type="TextureRect" parent="Control/HBoxContainer/WorldGeneratorUI"]
 margin_right = 100.0
 margin_bottom = 100.0
 rect_min_size = Vector2( 100, 100 )
 stretch_mode = 1
 flip_v = true
 
-[node name="HeightTextureRect" type="TextureRect" parent="Control/HBoxContainer/VBoxContainer"]
+[node name="HeightTextureRect" type="TextureRect" parent="Control/HBoxContainer/WorldGeneratorUI"]
 margin_top = 104.0
 margin_right = 100.0
 margin_bottom = 204.0
@@ -88,16 +77,36 @@ rect_min_size = Vector2( 100, 100 )
 stretch_mode = 1
 flip_v = true
 
-[node name="WorldGenerateButton" type="Button" parent="Control/HBoxContainer/VBoxContainer"]
+[node name="WorldGenerateButton" type="Button" parent="Control/HBoxContainer/WorldGeneratorUI"]
 margin_top = 208.0
 margin_right = 100.0
 margin_bottom = 228.0
 text = "Generate"
 
+[node name="HBoxContainer" type="HBoxContainer" parent="Control/HBoxContainer/WorldGeneratorUI"]
+margin_top = 232.0
+margin_right = 100.0
+margin_bottom = 248.0
+
+[node name="WorldSizeSlider" type="HSlider" parent="Control/HBoxContainer/WorldGeneratorUI/HBoxContainer"]
+margin_right = 88.0
+margin_bottom = 16.0
+size_flags_horizontal = 3
+min_value = 1.0
+max_value = 512.0
+value = 1.0
+
+[node name="WorldSizeLabel" type="Label" parent="Control/HBoxContainer/WorldGeneratorUI/HBoxContainer"]
+margin_left = 92.0
+margin_top = 1.0
+margin_right = 100.0
+margin_bottom = 15.0
+text = "4"
+
 [node name="GridContainer" type="GridContainer" parent="Control/HBoxContainer"]
 margin_left = 104.0
 margin_right = 231.0
-margin_bottom = 228.0
+margin_bottom = 248.0
 mouse_filter = 2
 columns = 2
 
@@ -222,7 +231,7 @@ text = "0"
 
 [node name="StreamContainer" type="Spatial" parent="."]
 script = ExtResource( 1 )
-Dimensions = Vector2( 18, 17 )
+Dimensions = Vector2( 30, 30 )
 World = NodePath("../TileWorld")
 
 [node name="ActiveTiles" type="Spatial" parent="StreamContainer"]
@@ -240,8 +249,8 @@ material/0 = SubResource( 2 )
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -1, 0 )
 shape = SubResource( 9 )
 
-[node name="Camera" type="Camera" parent="."]
+[node name="Camera" type="Camera" parent="StreamContainer"]
-transform = Transform( 1, 0, 0, 0, 0.511698, 0.859165, 0, -0.859165, 0.511698, -4.76837e-07, 4.79787, 2.99071 )
+transform = Transform( 1, 0, 0, 0, 0.511698, 0.859165, 0, -0.859165, 0.511698, 1.7053e-13, 10.6428, 6.65615 )
 current = true
 fov = 60.0
 script = ExtResource( 10 )
@@ -256,26 +265,6 @@ script = ExtResource( 3 )
 transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0, 0.5, 0 )
 shape = SubResource( 7 )
 
-[node name="MeshInstance" type="MeshInstance" parent="Player"]
-transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0, 0.5, 0 )
-mesh = SubResource( 8 )
-
-[node name="Arrow" type="Spatial" parent="Player/MeshInstance"]
-transform = Transform( 3, -1.51264e-15, -9.91796e-22, 0, -8.74228e-09, 3, -2.26897e-14, -0.2, -1.31134e-07, 0, -0.253289, 0.32602 )
-visible = false
-
-[node name="MeshInstance" type="MeshInstance" parent="Player/MeshInstance/Arrow"]
-transform = Transform( 0.1, 0, 3.72529e-09, 0, 0.1, 0, -3.72529e-09, 0, 0.1, 0, 0, 0 )
-visible = false
-mesh = SubResource( 14 )
-skeleton = NodePath("../../..")
-
-[node name="MeshInstance2" type="MeshInstance" parent="Player/MeshInstance/Arrow"]
-transform = Transform( 0.1, 3.72529e-09, -1.62838e-16, 0, -4.37114e-09, -0.1, -3.72529e-09, 0.1, -4.37114e-09, 0, 0, 0.191322 )
-visible = false
-mesh = SubResource( 15 )
-skeleton = NodePath("../../..")
-
 [node name="Movable" parent="Player" instance=ExtResource( 4 )]
 
 [node name="Geometry" type="Spatial" parent="Player"]
@@ -318,4 +307,6 @@ transform = Transform( 0.550568, 0, -0.83479, 0, 1, 0, 0.83479, 0, 0.550568, 4.8
 [node name="Chest2" parent="Entities" instance=ExtResource( 7 )]
 transform = Transform( 0.793576, 0, -0.608471, 0, 1, 0, 0.608471, 0, 0.793576, 2.79265, 0, -5.36551 )
 
+[connection signal="value_changed" from="Control/HBoxContainer/WorldGeneratorUI/HBoxContainer/WorldSizeSlider" to="Control/HBoxContainer/WorldGeneratorUI" method="_on_HSlider_value_changed"]
+
 [editable path="Entities/Chest"]

scenes/HexTile3D.tscn

@@ -19,7 +19,7 @@ transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0.0096302, 0, 0 )
 script = ExtResource( 1 )
 
 [node name="Mesh" type="MeshInstance" parent="."]
-transform = Transform( -4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, 0.00399733, -5, 0 )
+transform = Transform( -4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, 0.0325004, -5, -0.0786072 )
 mesh = SubResource( 6 )
 material/0 = ExtResource( 2 )
 

scenes/HexTile3DPatch.tscn

@@ -1203,3 +1203,6 @@ transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -0.762809, 0, -1.31108 )
 
 [node name="HexTile3D400" parent="." instance=ExtResource( 1 )]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -0.762809, 0, -9.08685 )
+
+[node name="Camera" type="Camera" parent="."]
+transform = Transform( 1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0, 20, 0 )

scenes/TileWorld.cs

@@ -1,9 +1,7 @@
 using Godot;
 using System;
 using System.Linq;
-using System.Numerics;
 using System.Diagnostics;
-using GoDotLog;
 using Vector2 = Godot.Vector2;
 using Vector3 = Godot.Vector3;
 
@@ -16,15 +14,15 @@ public class TileWorld : Spatial
         Done
     }
 
-    private GenerationState CurrentGenerationState = GenerationState.Heightmap;
+    private GenerationState _currentGenerationState = GenerationState.Heightmap;
 
     // signals
     [Signal]
     delegate void WorldGenerated();
 
     // public members
-    public float Size = 100;
+    public int Size = 11;
-    public float HeightScale = 10.0f;
+    public float HeightScale = 2.0f;
     public Image Heightmap;
     public Image Colormap;
     public int Seed = 0;
@@ -58,72 +56,54 @@ public class TileWorld : Spatial
         Debug.Assert(_heightmapOffscreenTextureRect != null);
         _heightmapOffscreenTextureRect.SetSize(new Vector2(Size, Size));
 
-        Generate();
+        Generate(Size);
     }
 
 
-    public void Generate()
+    public void Generate(int size)
     {
+        GD.Print("Triggering generation for size: " + size);
+        Size = size;
+        _worldOffscreenViewport.Size = new Vector2(size, size);
+        _heightmapOffscreenViewport.Size = new Vector2(size, size);
+        
         GenerateNoiseMap();
-        //GenerateDebugMap();
+//        GenerateDebugMap();
     }
 
     private void GenerateDebugMap()
     {
         Colormap = new Image();
-        Colormap.Create((int)Size, (int)Size, false, Image.Format.Rgba8);
+        Colormap.Create(Size, Size, false, Image.Format.Rgba8);
 
         Heightmap = new Image();
-        Heightmap.Create((int)Size, (int)Size, false, Image.Format.Rf);
+        Heightmap.Create(Size, Size, false, Image.Format.Rf);
 
         Heightmap.Lock();
         Colormap.Lock();
-        foreach (int coord_x in Enumerable.Range(0, (int)Size))
-        {
-            foreach (int coord_y in Enumerable.Range(0, (int)Size))
-            {
-//                Colormap.SetPixel(coord_x, coord_y, new Color((float) coord_x, (float) coord_y, 0, 1));
-                float coord_to_height =
-                    (float)coord_y / Size * 0f;
        
-                if (coord_x == 1 && coord_y == 4)
+        foreach (int coord_x in Enumerable.Range(0, Size))
         {
-                    coord_to_height = 1;
+            foreach (int coord_y in Enumerable.Range(0, Size))
+            {
+                Colormap.SetPixel(coord_x, coord_y, new Color((float) Mathf.Min(coord_x, coord_y) / Size, (float) 0, 0, 1));
+                Heightmap.SetPixel(coord_x, coord_y, new Color((float) Mathf.Min(coord_x, coord_y) / Size, (float) 0, 0, 1));
+            }
         }
         
-                SetHeightAtOffset(new Vector2(coord_x, coord_y), coord_to_height);
+        Colormap.SetPixel(Size - 1, Size -1, new Color(1, 1, 1, 1));
-            }
-        }
 
         Colormap.Unlock();
+        _currentGenerationState = GenerationState.Done;;
         
-        ImageTexture imageTexture = new ImageTexture();
+        EmitSignal("WorldGenerated");
-        imageTexture.CreateFromImage(Heightmap);
-        imageTexture.Flags = 0;
-        _worldOffscreenTextureRect.Texture = imageTexture;
-        Colormap.CopyFrom(imageTexture.GetData());
-    }
-
-    private void GenerateSimpleMap()
-    {
-        Heightmap = new Image();
-        Heightmap.Create((int)Size, (int)Size, false, Image.Format.Rf);
-        Heightmap.Lock();
-
-        foreach (int coord_x in Enumerable.Range(-(int)Size / 2, (int)Size))
-        {
-            foreach (int coord_y in Enumerable.Range(-(int)Size / 2, (int)Size))
-            {
-                SetHeightAtOffset(new Vector2(coord_x, coord_y), 5f);
-            }
-        }
     }
 
     
     private void GenerateNoiseMap()
     {
         Heightmap = new Image();
-        Heightmap.Create((int)Size, (int)Size, false, Image.Format.Rgba8);
+        Heightmap.Create(Size, Size, false, Image.Format.Rgba8);
 
         OpenSimplexNoise noiseGenerator = new OpenSimplexNoise();
 
@@ -134,54 +114,38 @@ public class TileWorld : Spatial
         noiseGenerator.Lacunarity = 4;
 
         ImageTexture heightmapTexture = new ImageTexture();
-        // heightmapTexture.CreateFromImage(noiseGenerator.GetImage((int)Size, (int)Size));
         heightmapTexture.CreateFromImage(noiseGenerator.GetSeamlessImage((int) Size));
         heightmapTexture.Flags = 0;
         _heightmapOffscreenTextureRect.Texture = heightmapTexture;
         Heightmap.CopyFrom(_heightmapOffscreenViewport.GetTexture().GetData());
 
-        CurrentGenerationState = GenerationState.Heightmap;
+        _currentGenerationState = GenerationState.Heightmap;
     }
 
 
     public override void _Process(float delta)
     {
-        if (CurrentGenerationState == GenerationState.Heightmap)
+        if (_currentGenerationState == GenerationState.Heightmap)
         {
-            CurrentGenerationState = GenerationState.Color;
+            _currentGenerationState = GenerationState.Color;
             ImageTexture imageTexture = new ImageTexture();
             imageTexture.CreateFromImage(Heightmap);
             imageTexture.Flags = 0;
             _worldOffscreenTextureRect.Texture = imageTexture;
         }
-        else if (CurrentGenerationState == GenerationState.Color)
+        else if (_currentGenerationState == GenerationState.Color)
         {
             Colormap = new Image();
-            Colormap.Create((int)Size, (int)Size, false, Image.Format.Rgba8);
+            Colormap.Create(Size, Size, false, Image.Format.Rgba8);
-
             Colormap.CopyFrom(_worldOffscreenViewport.GetTexture().GetData());
             Heightmap.Lock();
 
-            CurrentGenerationState = GenerationState.Done;
+            _currentGenerationState = GenerationState.Done;
            
             EmitSignal("WorldGenerated");
         }
     }
 
-    public void ApplyHeightmap(Image heightmap)
-    {
-        foreach (int coord_x in Enumerable.Range(-(int)Size / 2, (int)Size))
-        {
-            foreach (int coord_y in Enumerable.Range(-(int)Size / 2, (int)Size))
-            {
-                Vector2 textureCoord = OffsetToTextureCoord(new Vector2(coord_x, coord_y));
-                float height = heightmap.GetPixel((int)textureCoord.x, (int)textureCoord.y).r;
-                SetHeightAtOffset(new Vector2(coord_x, coord_y), height);
-            }
-        }
-    }
-
-
     public bool IsOffsetCoordValid(Vector2 offsetCoord)
     {
         return ((int)Math.Clamp(offsetCoord.x, -Size / 2, Size / 2 - 1) == (int)offsetCoord.x
@@ -202,17 +166,9 @@ public class TileWorld : Spatial
 
     public Vector2 OffsetToTextureCoord(Vector2 offsetCoord)
     {
-        Vector2 textureCoord = (offsetCoord - Vector2.One * (Mathf.Floor(Size / 2) + 1)) % (Vector2.One * Size);
+//        Vector2 textureCoord = (offsetCoord - Vector2.One * (Mathf.Floor(Size / 2))) % (Vector2.One * Size);
-        if (textureCoord[0] < 0)
+        Vector2 mapSize = Vector2.One * Size;
-        {
+        Vector2 textureCoord = (offsetCoord + mapSize / 2).PosMod(mapSize);
-            textureCoord[0] += Size;
-        }
-
-        if (textureCoord[1] < 0)
-        {
-            textureCoord[1] += Size;
-        }
-
         return textureCoord;
     }
 
@@ -225,14 +181,20 @@ public class TileWorld : Spatial
 
     public float GetHeightAtOffset(Vector2 offsetCoord)
     {
-        if (CurrentGenerationState != GenerationState.Done)
+        if (_currentGenerationState != GenerationState.Done)
         {
             return 0f;
         }
         
         Vector2 textureCoord = OffsetToTextureCoord(offsetCoord);
 
-        return Heightmap.GetPixel((int)textureCoord.x, (int)(textureCoord.y)).r * HeightScale;
+        float heightmapHeight = Heightmap.GetPixel((int)textureCoord.x, (int)(textureCoord.y)).r * HeightScale;
+
+//        heightmapHeight = Mathf.Floor(heightmapHeight);
+//        heightmapHeight = heightmapHeight * 10)
+//        heightmapHeight = Mathf.Clamp(heightmapHeight, -1f, 5);
+
+        return heightmapHeight;
     }
 
 

scenes/tests/FragmentShaderHexTile.tres

@@ -35,7 +35,7 @@ ivec2 axial_to_offset(vec2 axial) {
 	ivec3 cubeCoords = round_cube_coords(axial_to_cube(axial));
     int x = cubeCoords.x;
     int y = cubeCoords.y;
-    int off_y = y + (x - (x % 2)) / 2;
+    int off_y = y + (x - (x & 1)) / 2;
     return ivec2(x, off_y);
 }
 
@@ -72,20 +72,23 @@ vec3 vertex_world_to_color(vec3 vertex_world) {
 vec3 vertex_world_to_hex_center(vec3 vertex_world) {
 	vec3 axial_coords_f = vec3(_HexAffineInverse * vertex_world.xz, 0);
 
-// Output:0
 	ivec2 offset_coord_f = axial_to_offset(axial_coords_f.xy);
+	vec2 mod_result = mod (vec2(offset_coord_f), vec2(2.0));
 	
 	vec3 result_color = vec3(0);
 	
-	if (offset_coord_f.x % 2 == 0) {
+	if (mod_result.x == 0.0) {
 		result_color.r = 1.0;
 	}
 	
-	if (offset_coord_f.y % 2 == 0) {
+	if (mod_result.y == 0.0) {
 		result_color.b = 1.0;
 	}
 	
-	return result_color;
+	result_color = vec3(float(offset_coord_f.x), float(offset_coord_f.y), 0.);
+	result_color.x = result_color.y;
+	
+	return mod(result_color / 4.0, vec3(1.0));
 }
 
 ivec2 cube_to_axial(ivec3 hex_i) {
@@ -125,7 +128,7 @@ vec3 vertex_world_to_hex_center_amid (vec3 vertex_world) {
 
 void fragment() {
 	ALBEDO = vertex_world_to_hex_center(vertex_coord);
-	ALBEDO = vertex_world_to_hex_center_amid(vertex_coord);
+//	ALBEDO = vertex_world_to_hex_center_amid(vertex_coord);
 }
 
 void light() {

scenes/tests/FragmentShaderHexTile.tscn

@@ -1,8 +1,12 @@
-[gd_scene load_steps=6 format=2]
+[gd_scene load_steps=7 format=2]
 
 [ext_resource path="res://scenes/tests/FragmentShaderHexTile.tres" type="Shader" id=1]
 
+[sub_resource type="ShaderMaterial" id=5]
+shader = ExtResource( 1 )
+
 [sub_resource type="PlaneMesh" id=1]
+material = SubResource( 5 )
 
 [sub_resource type="ShaderMaterial" id=2]
 shader = ExtResource( 1 )
@@ -12,7 +16,6 @@ radius = 0.1
 height = 0.2
 
 [sub_resource type="SpatialMaterial" id=4]
-albedo_color = Color( 1, 0, 0, 1 )
 
 [node name="Spatial" type="Spatial"]
 
@@ -20,7 +23,7 @@ albedo_color = Color( 1, 0, 0, 1 )
 transform = Transform( 1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0, 3.34454, 0 )
 
 [node name="MeshInstance" type="MeshInstance" parent="."]
-transform = Transform( 50, 0, 0, 0, 50, 0, 0, 0, 50, -0.00971127, 0, -0.00242263 )
+transform = Transform( 50, 0, 0, 0, 50, 0, 0, 0, 50, -0.00971127, 3.65894, -0.00242263 )
 mesh = SubResource( 1 )
 material/0 = SubResource( 2 )
 
@@ -34,11 +37,7 @@ transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 2.08117 )
 visible = false
 mesh = SubResource( 1 )
 
-[node name="MeshInstance4" type="MeshInstance" parent="."]
-transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 2.07165, 0, 2.08117 )
-visible = false
-mesh = SubResource( 1 )
-
 [node name="Center" type="MeshInstance" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 3.60949, 0 )
 mesh = SubResource( 3 )
 material/0 = SubResource( 4 )

ui/WorldGeneratorUI.gd

@@ -0,0 +1,14 @@
+extends VBoxContainer
+
+var world_size_label = null
+var world_size_slider = null
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	world_size_label = find_node("WorldSizeLabel")
+	world_size_slider = find_node("WorldSizeSlider");
+	
+	world_size_slider.value = 4
+
+func _on_HSlider_value_changed(value):
+	world_size_label.text = str(value)