Initial commit

Author: Hoimar

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

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+
+# Godot-specific ignores
+.import/
+export.cfg
+export_presets.cfg
+
+# Mono-specific ignores
+.mono/

LICENSE

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+MIT License
+
+Copyright (c) 2020 Hoimar
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Planet-Generator
+ 

default_env.tres

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+[gd_resource type="Environment" load_steps=2 format=2]
+
+[sub_resource type="ProceduralSky" id=1]
+sky_top_color = Color( 0.0862745, 0.0862745, 0.141176, 1 )
+sky_horizon_color = Color( 0.0431373, 0.141176, 0.223529, 1 )
+sky_energy = 2.0
+ground_bottom_color = Color( 0.168627, 0.203922, 0.239216, 1 )
+ground_horizon_color = Color( 0.0431373, 0.141176, 0.223529, 1 )
+sun_latitude = 33.0
+sun_longitude = 46.0
+sun_energy = 5.0
+
+[resource]
+background_mode = 2
+background_sky = SubResource( 1 )
+ambient_light_color = Color( 0.137255, 0.156863, 0.184314, 1 )

project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=4
+
+_global_script_classes=[ {
+"base": "Spatial",
+"class": "NoiseGenerator",
+"language": "GDScript",
+"path": "res://scripts/NoiseGenerator.gd"
+}, {
+"base": "MeshInstance",
+"class": "TerrainFace",
+"language": "GDScript",
+"path": "res://scripts/TerrainFace.gd"
+} ]
+_global_script_class_icons={
+"NoiseGenerator": "",
+"TerrainFace": ""
+}
+
+[application]
+
+config/name="Planet Generator"
+run/main_scene="res://scenes/Main.tscn"
+config/icon="res://resources/icon.png"
+
+[rendering]
+
+quality/filters/msaa=3
+environment/default_environment="res://resources/default_env.tres"

resources/Planet.tres

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+[gd_resource type="SpatialMaterial" format=2]
+
+[resource]
+albedo_color = Color( 0.498039, 0.372549, 0, 1 )
+roughness = 0.35

resources/default_env.tres

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+[gd_resource type="Environment" load_steps=2 format=2]
+
+[sub_resource type="ProceduralSky" id=1]
+sky_top_color = Color( 0.0862745, 0.0862745, 0.141176, 1 )
+sky_horizon_color = Color( 0.0431373, 0.141176, 0.223529, 1 )
+sky_energy = 2.0
+ground_bottom_color = Color( 0.168627, 0.203922, 0.239216, 1 )
+ground_horizon_color = Color( 0.0431373, 0.141176, 0.223529, 1 )
+sun_latitude = 33.0
+sun_longitude = 46.0
+sun_energy = 5.0
+
+[resource]
+background_mode = 2
+background_sky = SubResource( 1 )
+ambient_light_color = Color( 0.137255, 0.156863, 0.184314, 1 )

resources/icon.png

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+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-e9340f3172b6e3151758cbd23c21cb71.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://resources/icon.png"
+dest_files=[ "res://.import/icon.png-e9340f3172b6e3151758cbd23c21cb71.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=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

resources/icon.png.import

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+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://resources/default_env.tres" type="Environment" id=1]
+[ext_resource path="res://scripts/3DNoisePlanet.gd" type="Script" id=2]
+[ext_resource path="res://scenes/Ship.tscn" type="PackedScene" id=3]
+
+[sub_resource type="SpatialMaterial" id=1]
+albedo_color = Color( 0.388235, 0.258824, 0, 1 )
+roughness = 0.5
+
+[sub_resource type="SphereMesh" id=2]
+material = SubResource( 1 )
+radial_segments = 512
+rings = 256
+
+[node name="Spatial" type="Spatial"]
+script = ExtResource( 2 )
+
+[node name="gui" type="CanvasLayer" parent="."]
+
+[node name="PanelContainer" type="PanelContainer" parent="gui"]
+anchor_right = 0.2
+anchor_bottom = 0.2
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="GridContainer" type="GridContainer" parent="gui/PanelContainer"]
+margin_left = 7.0
+margin_top = 7.0
+margin_right = 197.8
+margin_bottom = 114.0
+custom_constants/vseparation = 5
+columns = 2
+
+[node name="Label" type="Label" parent="gui/PanelContainer/GridContainer"]
+margin_top = 5.0
+margin_right = 75.0
+margin_bottom = 19.0
+text = "Seed"
+
+[node name="spn_seed" type="SpinBox" parent="gui/PanelContainer/GridContainer"]
+margin_left = 79.0
+margin_right = 190.0
+margin_bottom = 24.0
+size_flags_horizontal = 3
+
+[node name="Label2" type="Label" parent="gui/PanelContainer/GridContainer"]
+margin_top = 34.0
+margin_right = 75.0
+margin_bottom = 48.0
+text = "water level"
+
+[node name="spn_water" type="SpinBox" parent="gui/PanelContainer/GridContainer"]
+margin_left = 79.0
+margin_top = 29.0
+margin_right = 190.0
+margin_bottom = 53.0
+size_flags_horizontal = 3
+min_value = -1.0
+max_value = 1.0
+step = 0.02
+value = 0.1
+
+[node name="Label3" type="Label" parent="gui/PanelContainer/GridContainer"]
+margin_top = 63.0
+margin_right = 75.0
+margin_bottom = 77.0
+text = "influence"
+
+[node name="spn_influence" type="SpinBox" parent="gui/PanelContainer/GridContainer"]
+margin_left = 79.0
+margin_top = 58.0
+margin_right = 190.0
+margin_bottom = 82.0
+size_flags_horizontal = 3
+step = 0.002
+value = 5.0
+suffix = "%"
+
+[node name="btn_generate" type="Button" parent="gui/PanelContainer/GridContainer"]
+margin_top = 87.0
+margin_right = 75.0
+margin_bottom = 107.0
+text = "Generate!"
+
+[node name="Ship" parent="." instance=ExtResource( 3 )]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 33.3719 )
+
+[node name="Planet" type="MeshInstance" parent="."]
+mesh = SubResource( 2 )
+material/0 = null
+
+[node name="OmniLight" type="OmniLight" parent="."]
+transform = Transform( 0.412129, -0.897543, -0.156738, 0.253923, -0.052066, 0.965822, -0.875027, -0.437843, 0.206449, 0.80857, 1.55902, 2.23497 )
+shadow_enabled = true
+omni_range = 1000.0
+
+[node name="Camera" type="Camera" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 2 )
+current = true
+near = 0.01
+far = 1000.0
+
+[node name="WorldEnvironment" type="WorldEnvironment" parent="."]
+environment = ExtResource( 1 )
+[connection signal="pressed" from="gui/PanelContainer/GridContainer/btn_generate" to="." method="_on_btn_generate_pressed"]

scenes/3DNoisePlanet.tscn

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+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://resources/default_env.tres" type="Environment" id=1]
+[ext_resource path="res://scripts/Main.gd" type="Script" id=2]
+
+[node name="Main" type="WorldEnvironment"]
+environment = ExtResource( 1 )
+script = ExtResource( 2 )
+
+[node name="PlanetContainer" type="Spatial" parent="."]
+
+[node name="Camera" type="Camera" parent="."]
+transform = Transform( 0.801504, 0.0806397, -0.592527, 0, 0.990866, 0.134851, 0.597989, -0.108084, 0.794183, -1.23852, 0.248043, 1.50765 )
+
+[node name="OmniLight" type="OmniLight" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 5.12803, 4.42749, 6.41141 )
+omni_range = 100.0

scenes/Main.tscn

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+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://scripts/Ship.gd" type="Script" id=1]
+
+
+[sub_resource type="CubeMesh" id=1]
+
+[node name="Ship" type="Spatial"]
+script = ExtResource( 1 )
+
+[node name="MeshInstance" type="MeshInstance" parent="."]
+transform = Transform( 0.6, 0, 0, 0, 0.5, 0, 0, 0, 1, 0, 0, 0 )
+mesh = SubResource( 1 )
+material/0 = null
+
+[node name="Camera" type="Camera" parent="."]
+transform = Transform( 1, 0, 0, 0, 0.936764, 0.349962, 0, -0.349962, 0.936764, 0, 2.997, 4.737 )
+far = 10000.0

scenes/Ship.tscn

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+extends Spatial
+
+var noise: OpenSimplexNoise
+
+onready var planet = $Planet
+onready var org_mesh: Mesh = planet.mesh.duplicate(true)
+onready var spn_seed = $gui/PanelContainer/GridContainer/spn_seed
+onready var spn_water = $gui/PanelContainer/GridContainer/spn_water
+onready var spn_influence = $gui/PanelContainer/GridContainer/spn_influence
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	randomize()
+	spn_seed.value = randi()
+	generate()
+
+func generate():
+	noise = OpenSimplexNoise.new()
+	noise.seed = spn_seed.value
+	noise.octaves = 4.0
+	noise.period = .3
+	noise.persistence = 0.8
+
+	var surf: MeshDataTool = MeshDataTool.new()
+	var array_mesh = ArrayMesh.new()
+	array_mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, org_mesh.get_mesh_arrays())
+	var result: int = surf.create_from_surface(array_mesh, 0)
+	if result != OK:
+		print("Error while creating MeshDataTool, exiting. Error: %d" % [result])
+		return
+	
+	var influence = org_mesh.radius*spn_influence.value/100
+	var water_level = spn_water.value
+	
+	for i in range(0, surf.get_vertex_count()):
+		var v: Vector3 = surf.get_vertex(i)
+		
+		var value = noise.get_noise_3dv(v)
+		if value > water_level:
+			v += v.normalized() * value * influence
+		else:
+			pass #v += v.normalized() * influence
+		surf.set_vertex(i, v)
+	
+	var min_dist = 0.9 #radius-1/radius
+	var max_dist = 1.1 #radius+1/radius
+	
+	for i in range(surf.get_vertex_count()):
+		var v = surf.get_vertex(i)
+		var dist = v.length() 
+		var dist_normalized = range_lerp(dist, min_dist, max_dist, 0, 1) # bring dist to 0..1 range
+		
+		var uv = Vector2(dist_normalized, 0)
+		surf.set_vertex_uv(i, uv)
+		
+	# recalculate face normals (TODO smooth them!)
+	for i in range(surf.get_face_count()):
+		
+		var v1i = surf.get_face_vertex(i,0)
+		var v2i = surf.get_face_vertex(i,1)
+		var v3i = surf.get_face_vertex(i,2)
+		
+		var v1 = surf.get_vertex(v1i)
+		var v2 = surf.get_vertex(v2i)
+		var v3 = surf.get_vertex(v3i)
+		
+		# calculate normal for this face
+		var norm = -(v2 - v1).normalized().cross((v3 - v1).normalized()).normalized()
+		
+		surf.set_vertex_normal(v1i, norm)
+		surf.set_vertex_normal(v2i, norm)
+		surf.set_vertex_normal(v3i, norm)
+	
+	# commit the mesh
+	var mmesh = ArrayMesh.new() 
+	surf.commit_to_surface(mmesh)
+	planet.mesh = mmesh
+	planet.mesh.surface_set_material(0, org_mesh.surface_get_material(0))
+	
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _physics_process(delta):
+	planet.rotation.y += PI / (360*2)
+
+func _on_btn_generate_pressed():
+	generate()