Added automatic procedural level of detail to planets

godot/Scripts/PlanetGeneration/PlanetData.gd

@@ -0,0 +1,56 @@
+@tool
+
+extends Resource
+
+class_name PlanetData
+
+@export var radius : float = 50:
+	get:
+		return radius
+	set(value):
+		radius = value
+		emit_signal("changed")
+
+@export var noise_map : FastNoiseLite = FastNoiseLite.new():
+	get:
+		return noise_map
+	set(value):
+		noise_map = value
+		emit_signal("changed")
+		if noise_map != null and not noise_map.is_connected("changed", on_data_changed):
+			noise_map.connect("changed", on_data_changed)
+
+@export var amplitude : float = 0.1:
+	get:
+		return amplitude
+	set(value):
+		amplitude = value
+		emit_signal("changed")
+
+var min_elevation := 99999.0
+var max_elevation := 0.0
+
+@export var planet_color : GradientTexture1D:
+	get:
+		return planet_color
+	set(value):
+		planet_color = value
+		emit_signal("changed")
+		if planet_color != null and not planet_color.is_connected("changed", on_data_changed):
+			planet_color.connect("changed", on_data_changed)
+
+@export var flatness : float = 6:
+	get:
+		return flatness
+	set(value):
+		flatness = value
+		emit_signal("changed")
+
+func on_data_changed():
+	emit_signal("changed")
+
+func point_on_planet(point_on_sphere : Vector3) -> Vector3:
+	assert(noise_map != null, "Noise map not set")
+	var elevation = noise_map.get_noise_3dv(point_on_sphere) / flatness
+	elevation = elevation/2 + 1
+	return point_on_sphere * radius * elevation