hypsographic curve

resources/planet_gradient.tres

@@ -1,5 +1,5 @@
 [gd_resource type="Gradient" format=3 uid="uid://b5l44rktieewe"]
 
 [resource]
-offsets = PackedFloat32Array(0.020102732, 0.21077614, 0.4361486, 0.4835682, 0.49508524, 0.49909908, 0.52932715, 0.5585736, 0.6065243, 0.65517426, 1)
+offsets = PackedFloat32Array(0.020102732, 0.21077614, 0.4361486, 0.4835682, 0.49508524, 0.49909908, 0.51515174, 0.5367887, 0.5766606, 0.7845561, 1)
 colors = PackedColorArray(2.5268645e-07, 3.128499e-07, 0.274243, 1, 8.904189e-07, 2.4065375e-07, 0.42930406, 1, 0.20772403, 0.34871656, 0.66512626, 1, 0.3622311, 0.6195445, 0.94423914, 1, 0.10825918, 0.3611443, 0.64106447, 1, 0.61873, 0.8132518, 0.40761396, 1, 0.35594854, 0.5452644, 0.23284999, 1, 0.77351433, 0.7971149, 0.5667908, 1, 0.7397217, 0.59494364, 0.46294695, 1, 0.3225033, 0.42213485, 0.47578907, 1, 1, 1, 1, 1)

resources/remapcurve.tres

@@ -0,0 +1,5 @@
+[gd_resource type="Curve" format=3 uid="uid://d3jm8hqn6hf6v"]
+
+[resource]
+_data = [Vector2(0, 0), 0.0, 0.0, 0, 0, Vector2(0.03899879, 0.2597651), 0.0, 0.0, 0, 0, Vector2(0.4429419, 0.37015414), 0.47422996, 0.47422996, 0, 0, Vector2(0.5, 0.5), 0.39357203, 0.39357203, 0, 0, Vector2(0.94081944, 0.64621437), 0.80014014, 0.80014014, 0, 0, Vector2(1, 1), 5.804001, 0.0, 0, 0]
+point_count = 6

scenes/MainScene.tscn

@@ -3,6 +3,7 @@
 [ext_resource type="Script" uid="uid://bhpic251bgvgk" path="res://src/Main.cs" id="1_611at"]
 [ext_resource type="ArrayMesh" uid="uid://65modei4jwaj" path="res://assets/PlanetBase.obj" id="2_k24pf"]
 [ext_resource type="Gradient" uid="uid://b5l44rktieewe" path="res://resources/planet_gradient.tres" id="2_ygjfp"]
+[ext_resource type="Curve" uid="uid://d3jm8hqn6hf6v" path="res://resources/remapcurve.tres" id="3_1wiy7"]
 [ext_resource type="Material" uid="uid://c55st036tapeo" path="res://shaders/planet.tres" id="3_ygjfp"]
 [ext_resource type="Material" uid="uid://k3teblrpopsb" path="res://shaders/map.tres" id="4_1wiy7"]
 [ext_resource type="Texture2D" uid="uid://n56csi5ekat" path="res://icon.svg" id="5_ygjfp"]
@@ -45,6 +46,7 @@ _meshInstance = NodePath("TabContainer/Planet/VBoxContainer/SubViewportContainer
 World = NodePath("TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo")
 _textureRect = NodePath("TabContainer/Projection")
 _gradient = ExtResource("2_ygjfp")
+_remapCurve = ExtResource("3_1wiy7")
 
 [node name="TabContainer" type="TabContainer" parent="." unique_id=1586027287]
 layout_mode = 1
@@ -73,7 +75,7 @@ stretch = true
 
 [node name="SubViewport" type="SubViewport" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer" unique_id=1257998631]
 handle_input_locally = false
-size = Vector2i(677, 554)
+size = Vector2i(677, 499)
 render_target_update_mode = 4
 
 [node name="ZaWarudo" type="Node3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport" unique_id=937719505]
@@ -95,6 +97,12 @@ surface_material_override/0 = ExtResource("3_ygjfp")
 transform = Transform3D(100, 0, 0, 0, 100, 0, 0, 0, 100, 0, 0, 0)
 mesh = SubResource("CylinderMesh_ygjfp")
 
+[node name="Pointer" type="Sprite3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo/Icosphere" unique_id=1498529325]
+unique_name_in_owner = true
+modulate = Color(1, 0, 0, 1)
+billboard = 1
+texture = ExtResource("5_ygjfp")
+
 [node name="Yaw" type="Node3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo" unique_id=2073443785]
 
 [node name="Pitch" type="Node3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo/Yaw" unique_id=98015529]
@@ -108,13 +116,6 @@ fov = 5.0
 [node name="CollisionShape3D" type="CollisionShape3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo/StaticBody3D" unique_id=299495076]
 shape = SubResource("SphereShape3D_rpqi1")
 
-[node name="Pointer" type="Sprite3D" parent="TabContainer/Planet/VBoxContainer/SubViewportContainer/SubViewport/ZaWarudo" unique_id=1498529325]
-unique_name_in_owner = true
-transform = Transform3D(0.01, 0, 0, 0, 0.01, 0, 0, 0, 0.01, 0, 0, 0)
-modulate = Color(1, 0, 0, 1)
-billboard = 1
-texture = ExtResource("5_ygjfp")
-
 [node name="MarginContainer" type="MarginContainer" parent="TabContainer/Planet/VBoxContainer" unique_id=1706135009]
 layout_mode = 2
 theme_override_constants/margin_left = 8
@@ -135,6 +136,19 @@ unique_name_in_owner = true
 layout_mode = 2
 max_value = 360.0
 
+[node name="HSeparator" type="HSeparator" parent="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer" unique_id=1053749080]
+layout_mode = 2
+
+[node name="Label2" type="Label" parent="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer" unique_id=473804807]
+layout_mode = 2
+text = "Planet Rotation"
+horizontal_alignment = 1
+
+[node name="PlanetAngle" type="HSlider" parent="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer" unique_id=1574475714]
+unique_name_in_owner = true
+layout_mode = 2
+max_value = 360.0
+
 [node name="PanelContainer" type="PanelContainer" parent="TabContainer/Planet" unique_id=716838825]
 layout_mode = 2
 size_flags_horizontal = 3
@@ -317,6 +331,8 @@ metadata/_tab_index = 1
 [connection signal="mouse_exited" from="TabContainer/Planet/VBoxContainer/SubViewportContainer" to="." method="MouseLeftViewport"]
 [connection signal="drag_ended" from="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer/SunAngle" to="." method="SunAngleStop"]
 [connection signal="drag_started" from="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer/SunAngle" to="." method="SunAngleStart"]
+[connection signal="drag_ended" from="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer/PlanetAngle" to="." method="PlanetAngleStop"]
+[connection signal="drag_started" from="TabContainer/Planet/VBoxContainer/MarginContainer/VBoxContainer/PlanetAngle" to="." method="PlanetAngleStart"]
 [connection signal="text_changed" from="TabContainer/Planet/PanelContainer/MarginContainer/VBoxContainer2/VBoxContainer2/HBoxContainer/AxialTilt" to="." method="AxialTiltChanged"]
 [connection signal="pressed" from="TabContainer/Planet/PanelContainer/MarginContainer/VBoxContainer2/VBoxContainer/HBoxContainer3/Reset" to="." method="MakeGo"]
 [connection signal="pressed" from="TabContainer/Planet/PanelContainer/MarginContainer/VBoxContainer2/VBoxContainer/HBoxContainer3/Advance" to="." method="Advance"]

shaders/planet.gdshader

@@ -8,7 +8,7 @@ void vertex() {
 	// Called for every vertex the material is visible on.
 	world_position = VERTEX;
 	color = COLOR.r;
-	VERTEX += VERTEX * COLOR.q * 0.1f;
+	VERTEX += VERTEX * COLOR.q * 0.03f;
 }
 
 void fragment() {

src/Main.cs

@@ -31,9 +31,10 @@ public partial class Main : Control
     private int _resolution = 512;
     
     private PlanetHelper _planetHelper;
+    [Export] private Curve _remapCurve;
     public override void _Ready()
     {
-        _planetHelper = new PlanetHelper(_meshInstance, _textureRect);
+        _planetHelper = new PlanetHelper(_meshInstance, _textureRect, _remapCurve);
         UpdateStats();
         Projector.GatherPoints(_planetHelper, int.Parse(GetNode<LineEdit>("%Resolution").Text));
         AxialTiltChanged(GetNode<LineEdit>("%AxialTilt").Text);
@@ -109,7 +110,8 @@ public partial class Main : Control
                     UpdateStats();
                     Vector3 vertexPos = _planetHelper.Mdt.GetVertex(_vertex.Id) * 0.01f;
                     vertexPos *= _meshInstance.Transform.Basis.Inverse().Orthonormalized();
-                    _pointerPosition = (Vector3)vertexPos + (vertexPos * (_vertex.Height + 0.01f) * 0.1f); // vertexPos * 1.01f;  
+                    _pointerPosition = (Vector3)vertexPos + (vertexPos * (_vertex.Height + 0.01f) * 0.03f); // vertexPos * 1.01f;
+                    GetNode<Node3D>("%Pointer").GlobalPosition = _pointerPosition;
                 }
 
             }
@@ -124,12 +126,17 @@ public partial class Main : Control
             _planetHelper.AutoRun = true;
         }
         _planetHelper.Process();
-        GetNode<Node3D>("%Pointer").GlobalPosition = _pointerPosition;
         if (_sunRotating)
         {
             GetNode<Node3D>("%Sun").Rotation -= GetNode<Node3D>("%Sun").Rotation;
             GetNode<Node3D>("%Sun").Rotation += new Vector3(0, (float)Mathf.DegToRad(GetNode<HSlider>("%SunAngle").Value), 0);
         }
+        if (_planetRotating)
+        {
+            _meshInstance.Rotation = Vector3.Zero;
+            _meshInstance.RotateY((float)Mathf.DegToRad(GetNode<HSlider>("%PlanetAngle").Value));
+            _meshInstance.RotateZ(Mathf.DegToRad(_axialTilt));
+        }
     }
     public void UpdateStats()
     {
@@ -160,7 +167,7 @@ public partial class Main : Control
 
     public void MakeGo()
     {
-        _planetHelper = new PlanetHelper(_meshInstance, _textureRect);
+        _planetHelper = new PlanetHelper(_meshInstance, _textureRect, _remapCurve);
     }
 
     public void Advance()
@@ -218,7 +225,7 @@ public partial class Main : Control
     {
         change = new string(change.Where(c => char.IsDigit(c)).ToArray());
         _resolution = Int32.Parse(change);
-        _resolution = Math.Clamp(_resolution, 64, 2048);
+        _resolution = Math.Clamp(_resolution, 4, 2048);
     }
 
     public void AxialTiltChanged(string value)
@@ -242,4 +249,15 @@ public partial class Main : Control
     {
         _sunRotating = false;
     }
+    private bool _planetRotating = false;
+    private float _planetRotation = 0f;
+    public void PlanetAngleStart()
+    {
+        _planetRotating = true;
+    }
+
+    public void PlanetAngleStop(bool changed)
+    {
+        _planetRotating = false;
+    }
 }

src/PlanetHelper.cs

@@ -99,12 +99,14 @@ public class PlanetHelper
     public MeshDataTool Mdt;
     
     public Oct Octree = new Oct();
-    
+
-    public PlanetHelper(MeshInstance3D meshInstance, TextureRect textureRect)
+    private Curve _remapCurve;
+    public PlanetHelper(MeshInstance3D meshInstance, TextureRect textureRect, Curve remapCurve)
     {
         _meshInstance = meshInstance;
         _arrayMesh = meshInstance.Mesh as ArrayMesh;
         _textureRect = textureRect;
+        _remapCurve = remapCurve;
         
         _continentalNoise = new FastNoiseLite();
         _mountainNoise = new FastNoiseLite();
@@ -502,7 +504,7 @@ public class PlanetHelper
             height = (height + 0.5f * mult) / (1f + mult);
             height += edgeDistance * 0.25f;
             height = (height + 0.5f * mult) / (1f + mult);
-            height += normalRate * 0.35f;
+            height += normalRate * 0.5f;
             height = Mathf.Clamp(height, 0.01f, 0.99f);
             ColorVertex(vertexData.Id, Colors.White * height);
             vertexData.StageComplete = true;
@@ -513,8 +515,12 @@ public class PlanetHelper
         {
             GD.Print($"Heights - min:'{Vertices.Min(v => v.Height)}' - max:'{Vertices.Max(v => v.Height)}' - average:'{Vertices.Average(v => v.Height)}'");
             ScaleValues(Vertices);
+            
             foreach (VertexData vertexData in Vertices)
+            {
+                vertexData.Height = _remapCurve.Sample(vertexData.Height);
                 ColorVertex(vertexData.Id, Colors.White * vertexData.Height);
+            }
             float oceanPercentage = Vertices.Count(v => v.Height < 0.5f) / (float)Vertices.Count;
             GD.Print($"Ocean Percentage:'{oceanPercentage}'");
             CompleteStage();